Add 15/28 and 25/60
15/28 + 25/60 is 20/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
15/28 = 15 × 15/28 × 15 = 225/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
25/60 = 25 × 7/60 × 7 = 175/420 - Add the two like fractions:
225/420 + 175/420 = 225 + 175/420 = 400/420 - 400/420 simplified gives 20/21
- So, 15/28 + 25/60 = 20/21
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