Subtract 81/7 from 1/98
1st number: 1/98, 2nd number: 11 4/7
1/98 - 81/7 is -1133/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
1/98 = 1 × 1/98 × 1 = 1/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
81/7 = 81 × 14/7 × 14 = 1134/98 - Subtract the two like fractions:
1/98 - 1134/98 = 1 - 1134/98 = -1133/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/98-81/7 1/98-81/14 3/98-81/7 1/98-81/21 5/98-81/7 1/98-81/35 7/98-81/7 1/98-81/49