Subtract 21/36 from 20/24
20/24 - 21/36 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
20/24 = 20 × 3/24 × 3 = 60/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Subtract the two like fractions:
60/72 - 42/72 = 60 - 42/72 = 18/72 - After reducing the fraction, the answer is 1/4
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