Subtract 25/20 from 28/25
1st number: 1 3/25, 2nd number: 1 5/20
28/25 - 25/20 is -13/100.
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,
28/25 = 28 × 4/25 × 4 = 112/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
25/20 = 25 × 5/20 × 5 = 125/100 - Subtract the two like fractions:
112/100 - 125/100 = 112 - 125/100 = -13/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/25-25/20 28/25-50/20 28/50-25/20 28/25-25/40 84/25-25/20 28/25-75/20 28/75-25/20 28/25-25/60