Subtract 15/54 from 10/84
10/84 - 15/54 is -10/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
10/84 = 10 × 9/84 × 9 = 90/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
15/54 = 15 × 14/54 × 14 = 210/756 - Subtract the two like fractions:
90/756 - 210/756 = 90 - 210/756 = -120/756 - After reducing the fraction, the answer is -10/63
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