Subtract 21/63 from 5/40
5/40 - 21/63 is -5/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
5/40 = 5 × 63/40 × 63 = 315/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
21/63 = 21 × 40/63 × 40 = 840/2520 - Subtract the two like fractions:
315/2520 - 840/2520 = 315 - 840/2520 = -525/2520 - After reducing the fraction, the answer is -5/24
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