Add 21/63 and 56/60
21/63 + 56/60 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
56/60 = 56 × 21/60 × 21 = 1176/1260 - Add the two like fractions:
420/1260 + 1176/1260 = 420 + 1176/1260 = 1596/1260 - 1596/1260 simplified gives 19/15
- So, 21/63 + 56/60 = 19/15
In mixed form: 14/15
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