Add 9/28 and 9/15
9/28 + 9/15 is 129/140.
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,
9/28 = 9 × 15/28 × 15 = 135/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
9/15 = 9 × 28/15 × 28 = 252/420 - Add the two like fractions:
135/420 + 252/420 = 135 + 252/420 = 387/420 - 387/420 simplified gives 129/140
- So, 9/28 + 9/15 = 129/140
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