Add 15/56 and 42/20
1st number: 15/56, 2nd number: 2 2/20
15/56 + 42/20 is 663/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
42/20 = 42 × 14/20 × 14 = 588/280 - Add the two like fractions:
75/280 + 588/280 = 75 + 588/280 = 663/280 - So, 15/56 + 42/20 = 663/280
In mixed form: 2103/280
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