Subtract 40/56 from 45/18
1st number: 2 9/18, 2nd number: 40/56
45/18 - 40/56 is 25/14.
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,
45/18 = 45 × 28/18 × 28 = 1260/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
40/56 = 40 × 9/56 × 9 = 360/504 - Subtract the two like fractions:
1260/504 - 360/504 = 1260 - 360/504 = 900/504 - After reducing the fraction, the answer is 25/14
- In mixed form: 111/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18-40/56 45/18-80/56 45/36-40/56 45/54-40/56 45/90-40/56