Subtract 2/21 from 56/18
1st number: 3 2/18, 2nd number: 2/21
56/18 - 2/21 is 190/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
56/18 = 56 × 7/18 × 7 = 392/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
2/21 = 2 × 6/21 × 6 = 12/126 - Subtract the two like fractions:
392/126 - 12/126 = 392 - 12/126 = 380/126 - After reducing the fraction, the answer is 190/63
- In mixed form: 31/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-4/21 56/36-2/21 56/18-2/42 56/18-6/21 56/54-2/21 56/18-2/63 56/18-10/21 56/90-2/21 56/18-14/21