Add 56/21 and 20/7
1st number: 2 14/21, 2nd number: 2 6/7
56/21 + 20/7 is 116/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
56/21 = 56 × 1/21 × 1 = 56/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
20/7 = 20 × 3/7 × 3 = 60/21 - Add the two like fractions:
56/21 + 60/21 = 56 + 60/21 = 116/21 - So, 56/21 + 20/7 = 116/21
In mixed form: 511/21
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