Subtract 28/20 from 8/25
1st number: 8/25, 2nd number: 1 8/20
8/25 - 28/20 is -27/25.
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,
8/25 = 8 × 4/25 × 4 = 32/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
28/20 = 28 × 5/20 × 5 = 140/100 - Subtract the two like fractions:
32/100 - 140/100 = 32 - 140/100 = -108/100 - After reducing the fraction, the answer is -27/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/25-28/20 8/25-56/20 8/50-28/20 8/25-28/40 24/25-28/20 8/25-84/20 8/75-28/20 8/25-28/60 40/25-28/20 56/25-28/20