Subtract 42/98 from 7/50
7/50 - 42/98 is -101/350.
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,
7/50 = 7 × 49/50 × 49 = 343/2450 - Likewise, for the 2nd fraction, since 98 × 25 = 2450,
42/98 = 42 × 25/98 × 25 = 1050/2450 - Subtract the two like fractions:
343/2450 - 1050/2450 = 343 - 1050/2450 = -707/2450 - After reducing the fraction, the answer is -101/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/50-42/98 7/50-84/98 21/50-42/98 35/50-42/98 49/50-42/98