Add 56/3 and 20/21
1st number: 18 2/3, 2nd number: 20/21
56/3 + 20/21 is 412/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
56/3 = 56 × 7/3 × 7 = 392/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
20/21 = 20 × 1/21 × 1 = 20/21 - Add the two like fractions:
392/21 + 20/21 = 392 + 20/21 = 412/21 - So, 56/3 + 20/21 = 412/21
In mixed form: 1913/21
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