







find f+g 
20160626 

yzabelle pose la question : find f+g
f(x)=x^21
g(x)=square root of x+2 Penny Nom lui répond. 





Fractions of two quantities 
20160122 

Melody pose la question : Kate ate 1/4 of her orange. Ben ate 2/4 of his banana. Did Kate and Ben eat 3/4 of theit fruit? Explain. Penny Nom lui répond. 





Adding fractions 
20140131 

bianco pose la question : 2/3+3/4=
9/86/8= Penny Nom lui répond. 





A word problem involving fractions 
20140123 

Pamela pose la question : John put 1/4 of his flowers in a vase
He gave 1/2 to of the flower to his wife
He gave 1/5 of the flowers to his daughter
He has 8 flowers left
How many flowers did John start with Penny Nom lui répond. 





Why can't we add or subtract speed? 
20131121 

kashish pose la question : why we cannot add or subtract "speed" / directly in any given distance , speed , time questions? Chris Fisher lui répond. 





Adding mixed numbers 
20131120 

Kathy pose la question : 1 3/4 + 1 2/3= ?
5 1/2  2 5/6= ? Penny Nom lui répond. 





Ann has a bag of marbles. 
20130725 

Carmen pose la question : Ann has a bag of marbles. she gave one half to her friend Tina and then one third to her friend Tom. Now left with 15. How many did she had originally? Robert Dawson and Penny Nom lui répond. 





Cutting three sections of pipe 
20130516 

Michael pose la question : A plumber cuts three sections of pipe from a 12’ length of ABS pipe, the lengths of the sections
are 33 3/8”, 56 5/8” and 39 7/8”. What is left over from the full length, if the saw cut is 1/8”
wide? Penny Nom lui répond. 





Adding two fractions 
20120919 

jeanette pose la question :
Question from jeanette, a parent:
can you help me figure this according to BEDMAS I am lost
steps please:
\[\frac{12.75^2}{50} + \frac{13.49^2}{60}\]
I hope this is not too confusing for you it is to me... Harley Weston lui répond. 





Adding more than 2 fractions 
20120910 

Anonymous pose la question : How do you add or subtract more than 2 integer fractions?
OK, here is an example.
5/6 + 7/4 + 13/8
Please tell me the steps.
Thanks grade 9 student Robert Dawson and Penny Nom lui répond. 





Adding speeds 
20120826 

Roy pose la question : May I ask if it is correct to add the following with units included? Some tell me that the units cannot be included in the addition because we cannot add speed. Harley Weston lui répond. 





Adding fractions 
20120105 

laurie pose la question : if shaded parts of a circle are 4/7 and the other is 1/3 what fraction is left Penny Nom lui répond. 





1 third plus 5 sixths 
20111110 

Matt pose la question : 1 third plus 5 sixths = Penny Nom lui répond. 





pi/2 + 12/13 
20110524 

Jen pose la question : If you have (pi/2) and you want to add it to (12/13), how would you go about it? Chris Fisher lui répond. 





1/a^2 + 1/b^2 
20110119 

robert pose la question : If (a + b)^2 = 81 and ab = 18, find the value of 1/a^2 + 1/b^2 ? Penny Nom lui répond. 





Least common denominator 
20100213 

Priscila pose la question : 3/8 + 4/5 + 7/3 + 9/10 = ?
Thank you for your assistance.
Priscila Penny Nom lui répond. 





Combining fractions 
20100210 

Nick pose la question : Combine the fractions
2m/t + 5/mt Penny Nom lui répond. 





Multiplying in different bases 
20090225 

Susan pose la question : 11 base 2 X 22 base 3 + 33 base 4 = _________ base 5 Robert Dawson lui répond. 





Averaging percentages 
20090221 

Chris pose la question : Ok I'll give you a simple example of what I'm doing. Lets say that on one forum, a memebr has made 52 posts out of the 412 posts made altogether. Then on another forum, the same person has made 10 posts out of the 60 posts altogether. What percentage of the posts has this person made in these 2 fourms combined. Robert Dawson and Harley Weston lui répond. 





Adding fractions 
20080917 

amanpreet pose la question : please can you help me to simplify:
2(c3) / 7 + 3(4c2)/2 Penny Nom lui répond. 





How do you add decimals? 
20080605 

nyheashiacurry pose la question : how do you add up decimals? Janice Cotcher lui répond. 





3 radical 48 +11 radical 75 
20080524 

Maria pose la question : Add 3 radical 48 +11 radical 75. Write answer in simpliest form. Penny Nom lui répond. 





Sum and difference of cubes 
20080130 

Amanda pose la question : It has been a really long time since I was in Algebra and I can't remember how to factor cubes such as x^3 +81 or subtracting/adding fractions with variables such as [1/(x+h)+2][1/x+2]. Please help!!! Penny Nom lui répond. 





Adding algebraic fractions 
20070814 

John pose la question : Ive completely forgot anything to do with the subject mentioned, so my question is straight to the point..
I need to know how to do the following problem (Preferably do not give me an answer though)
(k/3k8)  (4/k+2) Penny Nom lui répond. 





Fractions of fractions 
20070718 

Bridget pose la question : Sam and Mary each owned onehalf stock in a printing company. Sam sold 2/3 of his stock to Mary. What fractional part of the printing business does Mary now own? Penny Nom lui répond. 





Adding with mixed fractions 
20060330 

Becca pose la question :
can anyone help with how we change to get the same denominator with adding whole number.
example:8+7 3/8
6 1/2 + 2 5/6
Stephen La Rocque lui répond. 





Adding fractions 
20060326 

Barbara pose la question : I know that to subtract 1/4 from 2/3 I must find a common denom. Now the 2/3 becomes 8/12.....i understand the 12, but where does the 8 come from? Penny Nom lui répond. 





Adding improper fractions 
20051125 

Paula pose la question : I would like a simple step by step explanation on how to add improper fractions. Penny Nom lui répond. 





Adding positive and negative numbers 
20050903 

Billy pose la question : 46 + 24 =
38 + 22 =
19  20 = Penny Nom lui répond. 





Adding consecutive integers 
20050513 

Yas pose la question : i need some help with my work which is to investigating sums of consecutive numbers for example: 15= 4+5+6 and 15=1+2+3+4+5 Penny Nom lui répond. 





The least common denominator 
20041103 

A student pose la question : Write the LCD for each pair of fractions.
13. 1/3,1/5
14. 2/7,1/4
15. 3/4,3/5 Penny Nom lui répond. 





Subtracting fractions 
20040511 

Filipe pose la question : Question:
_5_  __7__
6ab 8a Penny Nom lui répond. 





A/30 + B/105 = (7A + 2B)/x 
20040205 

Jim pose la question : If A/30 + B/105 = (7A + 2B)/x and A, B, and x are integers greater than 1, what must x equal? Penny Nom lui répond. 





Adding percentages 
20031219 

Paula pose la question :
How do you add percentages
e.g 90% + 80% + 60% + 54% + 25% = ?
Penny Nom lui répond. 





Adding fractions 
20031116 

Ken pose la question : My name is Ken and I am taking my GED course for my High School and have not been in a class for 35 years. I am doing this for retraining. I am at the part about fractions. Here is an example that I am having trouble with.
1 3/7 + 4 2/3 + 11/21
They have no common denominators. Could you PLEASE help me. If you could send me a step by step explanation it would be greatly appreciated. Penny Nom lui répond. 





7+8+9+...+1000 
20020911 

Shirley pose la question : My question is what is the formula for adding up numbers when you don't start with number 1? For example 3 + 4 + 5 + 6 = 18. But how could you arrive at the answer without adding all the numbers? Penny Nom lui répond. 





Common Denominator 
20020826 

Slobodanka pose la question : What is a Common Denominator? Penny Nom lui répond. 





Adding algebraic fractions 
20020320 

Dolores pose la question : I get totally confused with this problem. I get confused with the getting the lowest terms. 4/x5 + 2/x 10/x^25x Penny Nom lui répond. 





Adding algebraic fractions 
20020123 

Francine pose la question :
Hello, I've come up with an answer for the following problem but it's not the same as the book's answer. However, the book has a lot of mistakes in it and I don't know if I'm doing it properly or not. Your help would be soooo appreciated. It's driving me crazy.The problem is:
2 + 3 + 4
 +  + 
(x1)^3 (x1)^2 (x1)
[(x1)^3 is (x1) to power of 3 etc.] Penny Nom lui répond. 





Adding and subtracting rational expressions 
20010503 

Donna pose la question : Adding and subtracting Rational expressions. I am in grade 10 and I am a student here is an example of the questions: 1/(x+1)  1/(x1) = ? Penny Nom lui répond. 





Adding functions 
20010219 

Jackie pose la question : f(x) = x^{2} + 1; g(x) = x^{2}  1 find a) ((f+g) of h)) (x) b) ((fg) of h)) (x) c) ((f of h)  (g of h)) (x) Penny Nom lui répond. 





What is wrong with these probelms? 
20010209 

Cindy pose la question : Hi, I am a planning on becomming a teacher and i am asked to find out what is wrong with these probelms and how i would go about showing a student what is wrong with them!! Error in patterns: 13/35=1/5; 27/73=2/3; 16/64=1/4 4/5+2/3=6/8; 2/5+3/4=5/9; 7/8+1/3=8/11 2/3*3=6/9; 1/4*6=6/24; 4/5*2=8/10 Leeanne Boehm and Penny Nom lui répond. 





Adding fractions 
20000423 

A grade 6 student pose la question : In adding fractions, how do I rewrite the fractions so that the denominators are equal? The problem is 3/4 + 1/6 = The other problem is 11/18 + 4/9 = Penny Nom lui répond. 





Making fruit salad 
20000329 

A grade 5 student pose la question : Miss.Muffet males a fruit salad by adding 31/2 pounds of grapes and 4 1/4 pounds of apples to every 2 1/4 pounds of melon. How many pounds of grapes does she use in 50 pounds of fruit salad? Claude Tardif lui répond. 





Adding Fractions 
19981015 

Lindsay pose la question : please help me!!!! Harley Weston lui répond. 





Adding Fractions 
19981003 

Pam Bailey pose la question : Can you help me simplfy this? (1/2a + 1/3b)  (1/4a  1/5b) + (1/6a  1/7) thanx Harley Weston lui répond. 





Using your fingers 
19980421 

Ian Sutherland pose la question : My 7yearold son, in Grade 2, constantly uses his fingers to count. I know for now this is a useful crutch but at what point should he stop? Diane Hanson lui répond. 

