Subtract 12/20 from 16/36
16/36 - 12/20 is -7/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
16/36 = 16 × 5/36 × 5 = 80/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Subtract the two like fractions:
80/180 - 108/180 = 80 - 108/180 = -28/180 - After reducing the fraction, the answer is -7/45
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