Subtract 21/24 from 20/25
20/25 - 21/24 is -3/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 24 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 25 × 24 = 600,
20/25 = 20 × 24/25 × 24 = 480/600 - Likewise, for the 2nd fraction, since 24 × 25 = 600,
21/24 = 21 × 25/24 × 25 = 525/600 - Subtract the two like fractions:
480/600 - 525/600 = 480 - 525/600 = -45/600 - After reducing the fraction, the answer is -3/40
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