Subtract 21/98 from 45/84
45/84 - 21/98 is 9/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
45/84 = 45 × 7/84 × 7 = 315/588 - Likewise, for the 2nd fraction, since 98 × 6 = 588,
21/98 = 21 × 6/98 × 6 = 126/588 - Subtract the two like fractions:
315/588 - 126/588 = 315 - 126/588 = 189/588 - After reducing the fraction, the answer is 9/28
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