Add 10/20 and 15/63
10/20 + 15/63 is 31/42.
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,
10/20 = 10 × 63/20 × 63 = 630/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
15/63 = 15 × 20/63 × 20 = 300/1260 - Add the two like fractions:
630/1260 + 300/1260 = 630 + 300/1260 = 930/1260 - 930/1260 simplified gives 31/42
- So, 10/20 + 15/63 = 31/42
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