Subtract 7/90 from 24/15
1st number: 1 9/15, 2nd number: 7/90
24/15 - 7/90 is 137/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
24/15 = 24 × 6/15 × 6 = 144/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
144/90 - 7/90 = 144 - 7/90 = 137/90 - In mixed form: 147/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/15-7/90 24/15-14/90 24/30-7/90 72/15-7/90 24/15-21/90 24/45-7/90 24/15-35/90 24/75-7/90 24/15-49/90