Subtract 40/25 from 5/18
1st number: 5/18, 2nd number: 1 15/25
5/18 - 40/25 is -119/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
5/18 = 5 × 25/18 × 25 = 125/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
40/25 = 40 × 18/25 × 18 = 720/450 - Subtract the two like fractions:
125/450 - 720/450 = 125 - 720/450 = -595/450 - After reducing the fraction, the answer is -119/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18-40/25 5/18-80/25 5/36-40/25 5/18-40/50 15/18-40/25 5/54-40/25 5/18-40/75 25/18-40/25 5/90-40/25 35/18-40/25