Subtract 21/24 from 15/36
15/36 - 21/24 is -11/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
15/36 = 15 × 2/36 × 2 = 30/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
21/24 = 21 × 3/24 × 3 = 63/72 - Subtract the two like fractions:
30/72 - 63/72 = 30 - 63/72 = -33/72 - After reducing the fraction, the answer is -11/24
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