Subtract 20/36 from 12/24
12/24 - 20/36 is -1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
12/24 = 12 × 3/24 × 3 = 36/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
20/36 = 20 × 2/36 × 2 = 40/72 - Subtract the two like fractions:
36/72 - 40/72 = 36 - 40/72 = -4/72 - After reducing the fraction, the answer is -1/18
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