Subtract 28/25 from 9/20
1st number: 9/20, 2nd number: 1 3/25
9/20 - 28/25 is -67/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
9/20 = 9 × 5/20 × 5 = 45/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
28/25 = 28 × 4/25 × 4 = 112/100 - Subtract the two like fractions:
45/100 - 112/100 = 45 - 112/100 = -67/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20-28/25 9/20-56/25 9/40-28/25 9/20-28/50 27/20-28/25 9/20-84/25 9/60-28/25 9/20-28/75 45/20-28/25 63/20-28/25