Add 21/7 and 15/56
1st number: 3 0/7, 2nd number: 15/56
21/7 + 15/56 is 183/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
15/56 = 15 × 1/56 × 1 = 15/56 - Add the two like fractions:
168/56 + 15/56 = 168 + 15/56 = 183/56 - So, 21/7 + 15/56 = 183/56
In mixed form: 315/56
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