Subtract 98/90 from 1/4
1st number: 1/4, 2nd number: 1 8/90
1/4 - 98/90 is -151/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
1/4 = 1 × 45/4 × 45 = 45/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
98/90 = 98 × 2/90 × 2 = 196/180 - Subtract the two like fractions:
45/180 - 196/180 = 45 - 196/180 = -151/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-98/90 1/8-98/90 3/4-98/90 1/12-98/90 5/4-98/90 1/20-98/90 7/4-98/90 1/28-98/90