Add 3/15 and 7/28
3/15 + 7/28 is 9/20.
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,
7/28 = 7 × 15/28 × 15 = 105/420 - Add the two like fractions:
84/420 + 105/420 = 84 + 105/420 = 189/420 - 189/420 simplified gives 9/20
- So, 3/15 + 7/28 = 9/20
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