Subtract 3/72 from 35/18
1st number: 1 17/18, 2nd number: 3/72
35/18 - 3/72 is 137/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
35/18 = 35 × 4/18 × 4 = 140/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
3/72 = 3 × 1/72 × 1 = 3/72 - Subtract the two like fractions:
140/72 - 3/72 = 140 - 3/72 = 137/72 - In mixed form: 165/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-3/72 35/18-6/72 35/36-3/72 35/18-9/72 35/54-3/72 35/18-15/72 35/90-3/72 35/18-21/72