Subtract 18/54 from 15/75
15/75 - 18/54 is -2/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 54 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 75 × 18 = 1350,
15/75 = 15 × 18/75 × 18 = 270/1350 - Likewise, for the 2nd fraction, since 54 × 25 = 1350,
18/54 = 18 × 25/54 × 25 = 450/1350 - Subtract the two like fractions:
270/1350 - 450/1350 = 270 - 450/1350 = -180/1350 - After reducing the fraction, the answer is -2/15
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