Add 72/15 and 80/12
1st number: 4 12/15, 2nd number: 6 8/12
72/15 + 80/12 is 172/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
72/15 = 72 × 4/15 × 4 = 288/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
80/12 = 80 × 5/12 × 5 = 400/60 - Add the two like fractions:
288/60 + 400/60 = 288 + 400/60 = 688/60 - 688/60 simplified gives 172/15
- So, 72/15 + 80/12 = 172/15
In mixed form: 117/15
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