Subtract 6/3 from 20/18
1st number: 1 2/18, 2nd number: 2 0/3
20/18 - 6/3 is -8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 3 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Likewise, for the 2nd fraction, since 3 × 6 = 18,
6/3 = 6 × 6/3 × 6 = 36/18 - Subtract the two like fractions:
20/18 - 36/18 = 20 - 36/18 = -16/18 - After reducing the fraction, the answer is -8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-6/3 20/18-12/3 20/36-6/3 60/18-6/3 20/18-18/3 20/54-6/3 20/18-6/9 20/18-30/3 20/90-6/3 20/18-6/15 20/18-42/3 20/18-6/21