Subtract 42/98 from 21/50
21/50 - 42/98 is -3/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 98 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 50 × 49 = 2450,
21/50 = 21 × 49/50 × 49 = 1029/2450 - Likewise, for the 2nd fraction, since 98 × 25 = 2450,
42/98 = 42 × 25/98 × 25 = 1050/2450 - Subtract the two like fractions:
1029/2450 - 1050/2450 = 1029 - 1050/2450 = -21/2450 - After reducing the fraction, the answer is -3/350
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