Subtract 21/54 from 3/36
3/36 - 21/54 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,
3/36 = 3 × 3/36 × 3 = 9/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Subtract the two like fractions:
9/108 - 42/108 = 9 - 42/108 = -33/108 - After reducing the fraction, the answer is -11/36
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