Add 35/28 and 21/15
1st number: 1 7/28, 2nd number: 1 6/15
35/28 + 21/15 is 53/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
35/28 = 35 × 15/28 × 15 = 525/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
21/15 = 21 × 28/15 × 28 = 588/420 - Add the two like fractions:
525/420 + 588/420 = 525 + 588/420 = 1113/420 - 1113/420 simplified gives 53/20
- So, 35/28 + 21/15 = 53/20
In mixed form: 213/20
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