Add 1/28 and 21/15
1st number: 1/28, 2nd number: 1 6/15
1/28 + 21/15 is 201/140.
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,
1/28 = 1 × 15/28 × 15 = 15/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
21/15 = 21 × 28/15 × 28 = 588/420 - Add the two like fractions:
15/420 + 588/420 = 15 + 588/420 = 603/420 - 603/420 simplified gives 201/140
- So, 1/28 + 21/15 = 201/140
In mixed form: 161/140
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