Subtract 7/25 from 21/98
21/98 - 7/25 is -23/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 25 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 98 × 25 = 2450,
21/98 = 21 × 25/98 × 25 = 525/2450 - Likewise, for the 2nd fraction, since 25 × 98 = 2450,
7/25 = 7 × 98/25 × 98 = 686/2450 - Subtract the two like fractions:
525/2450 - 686/2450 = 525 - 686/2450 = -161/2450 - After reducing the fraction, the answer is -23/350
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