Add 8/20 and 42/63
8/20 + 42/63 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
8/20 = 8 × 63/20 × 63 = 504/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
42/63 = 42 × 20/63 × 20 = 840/1260 - Add the two like fractions:
504/1260 + 840/1260 = 504 + 840/1260 = 1344/1260 - 1344/1260 simplified gives 16/15
- So, 8/20 + 42/63 = 16/15
In mixed form: 11/15
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