Subtract 21/9 from 56/3
1st number: 18 2/3, 2nd number: 2 3/9
56/3 - 21/9 is 49/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 9 is 9
Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,
56/3 = 56 × 3/3 × 3 = 168/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
21/9 = 21 × 1/9 × 1 = 21/9 - Subtract the two like fractions:
168/9 - 21/9 = 168 - 21/9 = 147/9 - After reducing the fraction, the answer is 49/3
- In mixed form: 161/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/3-42/9 56/6-21/9 56/3-21/18 56/3-63/9 56/9-21/9 56/3-21/27 56/15-21/9 56/3-21/45 56/21-21/9 56/3-21/63