Subtract 20/63 from 81/5
1st number: 16 1/5, 2nd number: 20/63
81/5 - 20/63 is 5003/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
81/5 = 81 × 63/5 × 63 = 5103/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
20/63 = 20 × 5/63 × 5 = 100/315 - Subtract the two like fractions:
5103/315 - 100/315 = 5103 - 100/315 = 5003/315 - In mixed form: 15278/315
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