Subtract 20/27 from 12/36
12/36 - 20/27 is -11/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
12/36 = 12 × 3/36 × 3 = 36/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
20/27 = 20 × 4/27 × 4 = 80/108 - Subtract the two like fractions:
36/108 - 80/108 = 36 - 80/108 = -44/108 - After reducing the fraction, the answer is -11/27
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