Subtract 18/56 from 56/21
1st number: 2 14/21, 2nd number: 18/56
56/21 - 18/56 is 197/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
56/21 = 56 × 8/21 × 8 = 448/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
18/56 = 18 × 3/56 × 3 = 54/168 - Subtract the two like fractions:
448/168 - 54/168 = 448 - 54/168 = 394/168 - After reducing the fraction, the answer is 197/84
- In mixed form: 229/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21-36/56 56/42-18/56 56/21-54/56 56/63-18/56 56/21-90/56