Subtract 20/16 from 12/72
1st number: 12/72, 2nd number: 1 4/16
12/72 - 20/16 is -13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
12/72 = 12 × 2/72 × 2 = 24/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Subtract the two like fractions:
24/144 - 180/144 = 24 - 180/144 = -156/144 - After reducing the fraction, the answer is -13/12
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