Subtract 7/90 from 60/45
1st number: 1 15/45, 2nd number: 7/90
60/45 - 7/90 is 113/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
60/45 = 60 × 2/45 × 2 = 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: 60/45-14/90 60/90-7/90 60/45-21/90 60/45-35/90 60/45-49/90