Subtract 20/63 from 81/2
1st number: 40 1/2, 2nd number: 20/63
81/2 - 20/63 is 5063/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 2 × 63 = 126,
81/2 = 81 × 63/2 × 63 = 5103/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126 - Subtract the two like fractions:
5103/126 - 40/126 = 5103 - 40/126 = 5063/126 - In mixed form: 4023/126
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