Subtract 45/84 from 28/56
28/56 - 45/84 is -1/28.
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,
28/56 = 28 × 3/56 × 3 = 84/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
45/84 = 45 × 2/84 × 2 = 90/168 - Subtract the two like fractions:
84/168 - 90/168 = 84 - 90/168 = -6/168 - After reducing the fraction, the answer is -1/28
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Related: 28/56-90/84 84/56-45/84