Subtract 98/10 from 1/42
1st number: 1/42, 2nd number: 9 8/10
1/42 - 98/10 is -2053/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
98/10 = 98 × 21/10 × 21 = 2058/210 - Subtract the two like fractions:
5/210 - 2058/210 = 5 - 2058/210 = -2053/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42-98/10 1/84-98/10 1/42-98/20 3/42-98/10 1/42-98/30 5/42-98/10 1/42-98/50 7/42-98/10 1/42-98/70