Subtract 21/63 from 81/24
1st number: 3 9/24, 2nd number: 21/63
81/24 - 21/63 is 73/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 24 × 21 = 504,
81/24 = 81 × 21/24 × 21 = 1701/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Subtract the two like fractions:
1701/504 - 168/504 = 1701 - 168/504 = 1533/504 - After reducing the fraction, the answer is 73/24
- In mixed form: 31/24
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