Posted by Kenya Ruiz on .
How do you get these problems??
1 3/4 + 4/5 and 3 1/8  1 1/2

Adv. Math 
Ms. Sue,
When you add and subtract fractions, you need to use their common denominators.
1 3/4 + 4/5 = 1 15/20 + 16/20 = 1 31/20 = 2 11/20
Use the same method to solve your subtraction problem. We'll be glad to check your answer. 
Adv. Math 
Kenya Ruiz,
Then does 3 1/8  1 1/2 = 2 3/8??

Adv. Math 
Ms. Sue,
No. Sorry.
3 1/8  1 4/8 = 2 9/8  1 4/8 = ? 
Adv. Math 
Kenya Ruiz,
Ohhhhhh ok now i understand it you have to borrow from the whole number right?

Adv. Math 
Ms. Sue,
Right! :)

Adv. Math 
Kenya Ruiz,
Ohh ok thank you so much for your help =]

Adv. Math 
Ms. Sue,
You're very welcome. :)