Subtract 25/80 from 40/18
1st number: 2 4/18, 2nd number: 25/80
40/18 - 25/80 is 275/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
40/18 = 40 × 40/18 × 40 = 1600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
25/80 = 25 × 9/80 × 9 = 225/720 - Subtract the two like fractions:
1600/720 - 225/720 = 1600 - 225/720 = 1375/720 - After reducing the fraction, the answer is 275/144
- In mixed form: 1131/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-25/80 40/18-50/80 40/36-25/80 40/18-75/80 40/54-25/80 40/90-25/80