Subtract 72/54 from 45/60
1st number: 45/60, 2nd number: 1 18/54
45/60 - 72/54 is -7/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
45/60 = 45 × 9/60 × 9 = 405/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
72/54 = 72 × 10/54 × 10 = 720/540 - Subtract the two like fractions:
405/540 - 720/540 = 405 - 720/540 = -315/540 - After reducing the fraction, the answer is -7/12
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Related: 90/60-72/54