Add 3/15 and 9/28
3/15 + 9/28 is 73/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
3/15 = 3 × 28/15 × 28 = 84/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
9/28 = 9 × 15/28 × 15 = 135/420 - Add the two like fractions:
84/420 + 135/420 = 84 + 135/420 = 219/420 - 219/420 simplified gives 73/140
- So, 3/15 + 9/28 = 73/140
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