Subtract 4/63 from 21/20
1st number: 1 1/20, 2nd number: 4/63
21/20 - 4/63 is 1243/1260.
Steps for subtracting 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,
21/20 = 21 × 63/20 × 63 = 1323/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
4/63 = 4 × 20/63 × 20 = 80/1260 - Subtract the two like fractions:
1323/1260 - 80/1260 = 1323 - 80/1260 = 1243/1260
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