Subtract 35/40 from 35/18
1st number: 1 17/18, 2nd number: 35/40
35/18 - 35/40 is 77/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
35/18 = 35 × 20/18 × 20 = 700/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
35/40 = 35 × 9/40 × 9 = 315/360 - Subtract the two like fractions:
700/360 - 315/360 = 700 - 315/360 = 385/360 - After reducing the fraction, the answer is 77/72
- In mixed form: 15/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-35/40 35/18-70/40 35/36-35/40 35/18-35/80 35/54-35/40 35/90-35/40