Subtract 84/98 from 3/21
3/21 - 84/98 is -5/7.
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,
3/21 = 3 × 14/21 × 14 = 42/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
84/98 = 84 × 3/98 × 3 = 252/294 - Subtract the two like fractions:
42/294 - 252/294 = 42 - 252/294 = -210/294 - After reducing the fraction, the answer is -5/7
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