Subtract 35/90 from 20/18
1st number: 1 2/18, 2nd number: 35/90
20/18 - 35/90 is 13/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
35/90 = 35 × 1/90 × 1 = 35/90 - Subtract the two like fractions:
100/90 - 35/90 = 100 - 35/90 = 65/90 - After reducing the fraction, the answer is 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-35/90 20/18-70/90 20/36-35/90 60/18-35/90 20/54-35/90 20/90-35/90