Subtract 21/18 from 6/3
1st number: 2 0/3, 2nd number: 1 3/18
6/3 - 21/18 is 5/6.
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,
6/3 = 6 × 6/3 × 6 = 36/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Subtract the two like fractions:
36/18 - 21/18 = 36 - 21/18 = 15/18 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/3-21/18 6/3-42/18 6/3-21/36 18/3-21/18 6/3-63/18 6/9-21/18 6/3-21/54 30/3-21/18 6/15-21/18 6/3-21/90 42/3-21/18 6/21-21/18