Subtract 18/12 from 9/72
1st number: 9/72, 2nd number: 1 6/12
9/72 - 18/12 is -11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
9/72 = 9 × 1/72 × 1 = 9/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
18/12 = 18 × 6/12 × 6 = 108/72 - Subtract the two like fractions:
9/72 - 108/72 = 9 - 108/72 = -99/72 - After reducing the fraction, the answer is -11/8
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