Add 15/42 and 7/28
15/42 + 7/28 is 17/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
15/42 = 15 × 2/42 × 2 = 30/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
7/28 = 7 × 3/28 × 3 = 21/84 - Add the two like fractions:
30/84 + 21/84 = 30 + 21/84 = 51/84 - 51/84 simplified gives 17/28
- So, 15/42 + 7/28 = 17/28
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