Subtract 20/18 from 6/5
1st number: 1 1/5, 2nd number: 1 2/18
6/5 - 20/18 is 4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
6/5 = 6 × 18/5 × 18 = 108/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
108/90 - 100/90 = 108 - 100/90 = 8/90 - After reducing the fraction, the answer is 4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/5-20/18 6/5-40/18 6/10-20/18 6/5-20/36 18/5-20/18 6/5-60/18 6/15-20/18 6/5-20/54 30/5-20/18 6/25-20/18 6/5-20/90 42/5-20/18 6/35-20/18