Subtract 40/84 from 10/27
10/27 - 40/84 is -20/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
10/27 = 10 × 28/27 × 28 = 280/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
40/84 = 40 × 9/84 × 9 = 360/756 - Subtract the two like fractions:
280/756 - 360/756 = 280 - 360/756 = -80/756 - After reducing the fraction, the answer is -20/189
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