Subtract 45/54 from 63/84
63/84 - 45/54 is -1/12.
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,
63/84 = 63 × 9/84 × 9 = 567/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
45/54 = 45 × 14/54 × 14 = 630/756 - Subtract the two like fractions:
567/756 - 630/756 = 567 - 630/756 = -63/756 - After reducing the fraction, the answer is -1/12
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