Subtract 90/98 from 27/56
27/56 - 90/98 is -171/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 98 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 56 × 7 = 392,
27/56 = 27 × 7/56 × 7 = 189/392 - Likewise, for the 2nd fraction, since 98 × 4 = 392,
90/98 = 90 × 4/98 × 4 = 360/392 - Subtract the two like fractions:
189/392 - 360/392 = 189 - 360/392 = -171/392
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