Subtract 56/98 from 8/21
8/21 - 56/98 is -4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 21 × 14 = 294,
8/21 = 8 × 14/21 × 14 = 112/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
56/98 = 56 × 3/98 × 3 = 168/294 - Subtract the two like fractions:
112/294 - 168/294 = 112 - 168/294 = -56/294 - After reducing the fraction, the answer is -4/21
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