Subtract 5/40 from 45/54
45/54 - 5/40 is 17/24.
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,
45/54 = 45 × 20/54 × 20 = 900/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
5/40 = 5 × 27/40 × 27 = 135/1080 - Subtract the two like fractions:
900/1080 - 135/1080 = 900 - 135/1080 = 765/1080 - After reducing the fraction, the answer is 17/24
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