Subtract 7/90 from 4/3
1st number: 1 1/3, 2nd number: 7/90
4/3 - 7/90 is 113/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
4/3 = 4 × 30/3 × 30 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
120/90 - 7/90 = 120 - 7/90 = 113/90 - In mixed form: 123/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/3-7/90 4/3-14/90 4/6-7/90 12/3-7/90 4/3-21/90 4/9-7/90 20/3-7/90 4/3-35/90 4/15-7/90 28/3-7/90 4/3-49/90 4/21-7/90