Subtract 21/84 from 90/98
90/98 - 21/84 is 131/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 84 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 98 × 6 = 588,
90/98 = 90 × 6/98 × 6 = 540/588 - Likewise, for the 2nd fraction, since 84 × 7 = 588,
21/84 = 21 × 7/84 × 7 = 147/588 - Subtract the two like fractions:
540/588 - 147/588 = 540 - 147/588 = 393/588 - After reducing the fraction, the answer is 131/196
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