Subtract 84/54 from 45/40
1st number: 1 5/40, 2nd number: 1 30/54
45/40 - 84/54 is -31/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
45/40 = 45 × 27/40 × 27 = 1215/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
84/54 = 84 × 20/54 × 20 = 1680/1080 - Subtract the two like fractions:
1215/1080 - 1680/1080 = 1215 - 1680/1080 = -465/1080 - After reducing the fraction, the answer is -31/72
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