Add 28/56 and 21/60
28/56 + 21/60 is 17/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
21/60 = 21 × 14/60 × 14 = 294/840 - Add the two like fractions:
420/840 + 294/840 = 420 + 294/840 = 714/840 - 714/840 simplified gives 17/20
- So, 28/56 + 21/60 = 17/20
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