Subtract 4/18 from 9/56
9/56 - 4/18 is -31/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
9/56 = 9 × 9/56 × 9 = 81/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
4/18 = 4 × 28/18 × 28 = 112/504 - Subtract the two like fractions:
81/504 - 112/504 = 81 - 112/504 = -31/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/56-4/18 9/56-8/18 9/56-4/36 27/56-4/18 9/56-12/18 9/56-4/54 45/56-4/18 9/56-20/18 9/56-4/90 63/56-4/18 9/56-28/18