Subtract 18/27 from 15/25
15/25 - 18/27 is -1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 25 × 27 = 675,
15/25 = 15 × 27/25 × 27 = 405/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
18/27 = 18 × 25/27 × 25 = 450/675 - Subtract the two like fractions:
405/675 - 450/675 = 405 - 450/675 = -45/675 - After reducing the fraction, the answer is -1/15
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