Subtract 40/24 from 21/63
1st number: 21/63, 2nd number: 1 16/24
21/63 - 40/24 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Likewise, for the 2nd fraction, since 24 × 21 = 504,
40/24 = 40 × 21/24 × 21 = 840/504 - Subtract the two like fractions:
168/504 - 840/504 = 168 - 840/504 = -672/504 - After reducing the fraction, the answer is -4/3
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