Subtract 21/54 from 15/12
1st number: 1 3/12, 2nd number: 21/54
15/12 - 21/54 is 31/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
15/12 = 15 × 9/12 × 9 = 135/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Subtract the two like fractions:
135/108 - 42/108 = 135 - 42/108 = 93/108 - After reducing the fraction, the answer is 31/36
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