Add 21/10 and 42/56
1st number: 2 1/10, 2nd number: 42/56
21/10 + 42/56 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 10 × 28 = 280,
21/10 = 21 × 28/10 × 28 = 588/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
42/56 = 42 × 5/56 × 5 = 210/280 - Add the two like fractions:
588/280 + 210/280 = 588 + 210/280 = 798/280 - 798/280 simplified gives 57/20
- So, 21/10 + 42/56 = 57/20
In mixed form: 217/20
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