Add 15/16 and 20/72
15/16 + 20/72 is 175/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
15/16 = 15 × 9/16 × 9 = 135/144 - Likewise, for the 2nd fraction, since 72 × 2 = 144,
20/72 = 20 × 2/72 × 2 = 40/144 - Add the two like fractions:
135/144 + 40/144 = 135 + 40/144 = 175/144 - So, 15/16 + 20/72 = 175/144
In mixed form: 131/144
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