SOLUTION: Find the sum or difference. 4 5/9 - 3 2/15 Thanks! Please work really really really really fast! Happy Holidays!

Question 65010This question is from textbook Pre-Algebra
: Find the sum or difference. 4 5/9 - 3 2/15

Thanks! Please work really really really really fast! Happy Holidays! This question is from textbook Pre-Algebra

Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
4 5/9 -3 2/15 THESE MIXED FRACTIONS MUST HAVE A COMMON DENOMINATOR TO ADD/SUBTRACT 45 IS THE LOWEST COMMON DENOMINATOR THUS
4 5/9=41/9
41/9=X/45
9X=1845
X=1845/9
X=205 THUS
41/9=205/45
------------------------
3 2/15=47/15
47/15=X/45
15X=2115
X=2115/15
X=141 THUS
47/15=141/45 NOW WE CAN ADD/SUBTRACT THESE FRACTIONS
205/45-141/15=63/45
63/45=7/5 OR 1 2/5

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