Subtract 42/54 from 10/15
10/15 - 42/54 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
10/15 = 10 × 18/15 × 18 = 180/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Subtract the two like fractions:
180/270 - 210/270 = 180 - 210/270 = -30/270 - After reducing the fraction, the answer is -1/9
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