Add 21/63 and 8/20
21/63 + 8/20 is 11/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 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 20 × 63 = 1260,
8/20 = 8 × 63/20 × 63 = 504/1260 - Add the two like fractions:
420/1260 + 504/1260 = 420 + 504/1260 = 924/1260 - 924/1260 simplified gives 11/15
- So, 21/63 + 8/20 = 11/15
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