Subtract 25/54 from 15/40
15/40 - 25/54 is -19/216.
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,
15/40 = 15 × 27/40 × 27 = 405/1080 - Likewise, for the 2nd fraction, since 54 × 20 = 1080,
25/54 = 25 × 20/54 × 20 = 500/1080 - Subtract the two like fractions:
405/1080 - 500/1080 = 405 - 500/1080 = -95/1080 - After reducing the fraction, the answer is -19/216
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