Add 9/12 and 8/15
9/12 + 8/15 is 77/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
8/15 = 8 × 4/15 × 4 = 32/60 - Add the two like fractions:
45/60 + 32/60 = 45 + 32/60 = 77/60 - So, 9/12 + 8/15 = 77/60
In mixed form: 117/60
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