Add 21/16 and 15/7
1st number: 1 5/16, 2nd number: 2 1/7
21/16 + 15/7 is 387/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112 - Likewise, for the 2nd fraction, since 7 × 16 = 112,
15/7 = 15 × 16/7 × 16 = 240/112 - Add the two like fractions:
147/112 + 240/112 = 147 + 240/112 = 387/112 - So, 21/16 + 15/7 = 387/112
In mixed form: 351/112
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