Posted by catalina on .
Kate saves 1/5 of her allowance and spends 2/3 of her allowance at the mall. what fraction of her allowance remains?

Math 
Ms. Sue,
1/5 = 3/15
2/3 = 10/15
3/15 + 10/15 = 13/15
15/15  13/15 = ?? 
Math 
catalina,
i don't understand why we have to add 1/5 + 2/3. can you

Math 
catalina,
explain more in detail for me please

Math 
Ms. Sue,
You want to know how much you have left after she's saved some and spent some.

Math 
catalina,
okay I get it now. Thank you for your help :)

Math 
Ms. Sue,
:)
You're welcome. 
Math 
julio,
pineappples

Math 
Sammie,
Wouldn't you multiply the 5 by 3 and the 3 by 5 because you're getting common denominators instead of adding?