Subtract 4/63 from 81/20
1st number: 4 1/20, 2nd number: 4/63
81/20 - 4/63 is 5023/1260.
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,
81/20 = 81 × 63/20 × 63 = 5103/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
4/63 = 4 × 20/63 × 20 = 80/1260 - Subtract the two like fractions:
5103/1260 - 80/1260 = 5103 - 80/1260 = 5023/1260 - In mixed form: 31243/1260
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