how to add AND subtract 3 mixed numbers?

Algebra
Tutor: None Selected Time limit: 1 Day

help! very confusing for me , bolded numbers are whole numbers

9 3/5  +  5 3/10  -  7 1/2

Oct 13th, 2015

Ok i'll try to help you.

An easy way to go about this is convert each whole number to have a denominator of neighboring fraction

example

Then once everything is a fraction, figure out a common factor to simplify each of the fractions so they all have the same denominator and you can add them together.

  =   

equally convert all fractions to have a common denominator for group addition

 = (18+6+11)/12 = 35/12


Oct 13th, 2015

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Oct 13th, 2015
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