Subtract 10/3 from 20/18
1st number: 1 2/18, 2nd number: 3 1/3
20/18 - 10/3 is -20/9.
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,
10/3 = 10 × 6/3 × 6 = 60/18 - Subtract the two like fractions:
20/18 - 60/18 = 20 - 60/18 = -40/18 - After reducing the fraction, the answer is -20/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-10/3 20/18-20/3 20/36-10/3 20/18-10/6 60/18-10/3 20/18-30/3 20/54-10/3 20/18-10/9 20/18-50/3 20/90-10/3 20/18-10/15 20/18-70/3 20/18-10/21