Subtract 42/49 from 7/50
7/50 - 42/49 is -251/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 49 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 49 × 50 = 2450,
42/49 = 42 × 50/49 × 50 = 2100/2450 - Subtract the two like fractions:
343/2450 - 2100/2450 = 343 - 2100/2450 = -1757/2450 - After reducing the fraction, the answer is -251/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/50-42/49 7/50-84/49 7/50-42/98 21/50-42/49 35/50-42/49 49/50-42/49