Subtract 40/54 from 15/25
15/25 - 40/54 is -19/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 25 × 54 = 1350,
15/25 = 15 × 54/25 × 54 = 810/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
40/54 = 40 × 25/54 × 25 = 1000/1350 - Subtract the two like fractions:
810/1350 - 1000/1350 = 810 - 1000/1350 = -190/1350 - After reducing the fraction, the answer is -19/135
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