Add 21/56 and 42/7
1st number: 21/56, 2nd number: 6 0/7
21/56 + 42/7 is 51/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
42/7 = 42 × 8/7 × 8 = 336/56 - Add the two like fractions:
21/56 + 336/56 = 21 + 336/56 = 357/56 - 357/56 simplified gives 51/8
- So, 21/56 + 42/7 = 51/8
In mixed form: 63/8
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