Subtract 1/56 from 28/18
1st number: 1 10/18, 2nd number: 1/56
28/18 - 1/56 is 775/504.
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,
28/18 = 28 × 28/18 × 28 = 784/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
1/56 = 1 × 9/56 × 9 = 9/504 - Subtract the two like fractions:
784/504 - 9/504 = 784 - 9/504 = 775/504 - In mixed form: 1271/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-1/56 28/18-2/56 28/36-1/56 84/18-1/56 28/18-3/56 28/54-1/56 28/18-5/56 28/90-1/56 28/18-7/56