Add 15/28 and 21/36
15/28 + 21/36 is 47/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
15/28 = 15 × 9/28 × 9 = 135/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Add the two like fractions:
135/252 + 147/252 = 135 + 147/252 = 282/252 - 282/252 simplified gives 47/42
- So, 15/28 + 21/36 = 47/42
In mixed form: 15/42
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