Add 21/60 and 4/63
21/60 + 4/63 is 521/1260.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
21/60 = 21 × 21/60 × 21 = 441/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
4/63 = 4 × 20/63 × 20 = 80/1260 - Add the two like fractions:
441/1260 + 80/1260 = 441 + 80/1260 = 521/1260 - So, 21/60 + 4/63 = 521/1260
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