Subtract 8/18 from 20/3
1st number: 6 2/3, 2nd number: 8/18
20/3 - 8/18 is 56/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 3 × 6 = 18,
20/3 = 20 × 6/3 × 6 = 120/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
8/18 = 8 × 1/18 × 1 = 8/18 - Subtract the two like fractions:
120/18 - 8/18 = 120 - 8/18 = 112/18 - After reducing the fraction, the answer is 56/9
- In mixed form: 62/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3-8/18 20/3-16/18 20/6-8/18 20/3-8/36 60/3-8/18 20/3-24/18 20/9-8/18 20/3-8/54 20/3-40/18 20/15-8/18 20/3-8/90 20/3-56/18 20/21-8/18