Subtract 10/56 from 81/18
1st number: 4 9/18, 2nd number: 10/56
81/18 - 10/56 is 121/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
81/18 = 81 × 28/18 × 28 = 2268/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
10/56 = 10 × 9/56 × 9 = 90/504 - Subtract the two like fractions:
2268/504 - 90/504 = 2268 - 90/504 = 2178/504 - After reducing the fraction, the answer is 121/28
- In mixed form: 49/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18-20/56 81/36-10/56 81/18-30/56 81/54-10/56 81/18-50/56 81/90-10/56 81/18-70/56