Subtract 8/25 from 3/20
3/20 - 8/25 is -17/100.
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,
3/20 = 3 × 5/20 × 5 = 15/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
8/25 = 8 × 4/25 × 4 = 32/100 - Subtract the two like fractions:
15/100 - 32/100 = 15 - 32/100 = -17/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-8/25 3/20-16/25 3/40-8/25 3/20-8/50 9/20-8/25 3/20-24/25 3/60-8/25 3/20-8/75 15/20-8/25 3/20-40/25 21/20-8/25 3/20-56/25