Subtract 7/20 from 40/25
1st number: 1 15/25, 2nd number: 7/20
40/25 - 7/20 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
40/25 = 40 × 4/25 × 4 = 160/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
7/20 = 7 × 5/20 × 5 = 35/100 - Subtract the two like fractions:
160/100 - 35/100 = 160 - 35/100 = 125/100 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25-7/20 40/25-14/20 40/50-7/20 40/25-7/40 40/25-21/20 40/75-7/20 40/25-7/60 40/25-35/20 40/25-49/20