Subtract 3/15 from 35/18
1st number: 1 17/18, 2nd number: 3/15
35/18 - 3/15 is 157/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
35/18 = 35 × 5/18 × 5 = 175/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
3/15 = 3 × 6/15 × 6 = 18/90 - Subtract the two like fractions:
175/90 - 18/90 = 175 - 18/90 = 157/90 - In mixed form: 167/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-3/15 35/18-6/15 35/36-3/15 35/18-3/30 35/18-9/15 35/54-3/15 35/18-3/45 35/90-3/15 35/18-3/75 35/18-21/15