Add 21/56 and 15/16
21/56 + 15/16 is 21/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 56 × 2 = 112,
21/56 = 21 × 2/56 × 2 = 42/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
15/16 = 15 × 7/16 × 7 = 105/112 - Add the two like fractions:
42/112 + 105/112 = 42 + 105/112 = 147/112 - 147/112 simplified gives 21/16
- So, 21/56 + 15/16 = 21/16
In mixed form: 15/16
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