Add 5/21 and 2/63
5/21 + 2/63 is 17/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
5/21 = 5 × 3/21 × 3 = 15/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
2/63 = 2 × 1/63 × 1 = 2/63 - Add the two like fractions:
15/63 + 2/63 = 15 + 2/63 = 17/63 - So, 5/21 + 2/63 = 17/63
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