Subtract 42/63 from 81/5
1st number: 16 1/5, 2nd number: 42/63
81/5 - 42/63 is 233/15.
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,
42/63 = 42 × 5/63 × 5 = 210/315 - Subtract the two like fractions:
5103/315 - 210/315 = 5103 - 210/315 = 4893/315 - After reducing the fraction, the answer is 233/15
- In mixed form: 158/15
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