Add 12/15 and 5/8
12/15 + 5/8 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
12/15 = 12 × 8/15 × 8 = 96/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
5/8 = 5 × 15/8 × 15 = 75/120 - Add the two like fractions:
96/120 + 75/120 = 96 + 75/120 = 171/120 - 171/120 simplified gives 57/40
- So, 12/15 + 5/8 = 57/40
In mixed form: 117/40
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