Subtract 15/54 from 21/36
21/36 - 15/54 is 11/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
21/36 = 21 × 3/36 × 3 = 63/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
15/54 = 15 × 2/54 × 2 = 30/108 - Subtract the two like fractions:
63/108 - 30/108 = 63 - 30/108 = 33/108 - After reducing the fraction, the answer is 11/36
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