Subtract 56/40 from 72/54
1st number: 1 18/54, 2nd number: 1 16/40
72/54 - 56/40 is -1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
72/54 = 72 × 20/54 × 20 = 1440/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
56/40 = 56 × 27/40 × 27 = 1512/1080 - Subtract the two like fractions:
1440/1080 - 1512/1080 = 1440 - 1512/1080 = -72/1080 - After reducing the fraction, the answer is -1/15
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