Subtract 42/20 from 2/98
1st number: 2/98, 2nd number: 2 2/20
2/98 - 42/20 is -1019/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 98 × 10 = 980,
2/98 = 2 × 10/98 × 10 = 20/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
42/20 = 42 × 49/20 × 49 = 2058/980 - Subtract the two like fractions:
20/980 - 2058/980 = 20 - 2058/980 = -2038/980 - After reducing the fraction, the answer is -1019/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/98-42/20 2/98-84/20 2/98-42/40 6/98-42/20 2/98-42/60 10/98-42/20 14/98-42/20