Subtract 54/84 from 45/56
45/56 - 54/84 is 9/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
54/84 = 54 × 2/84 × 2 = 108/168 - Subtract the two like fractions:
135/168 - 108/168 = 135 - 108/168 = 27/168 - After reducing the fraction, the answer is 9/56
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Related: 90/56-54/84