Subtract 80/20 from 2/5
1st number: 2/5, 2nd number: 4 0/20
2/5 - 80/20 is -18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
2/5 = 2 × 4/5 × 4 = 8/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
80/20 = 80 × 1/20 × 1 = 80/20 - Subtract the two like fractions:
8/20 - 80/20 = 8 - 80/20 = -72/20 - After reducing the fraction, the answer is -18/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/5-80/20 2/10-80/20 2/5-80/40 6/5-80/20 2/15-80/20 2/5-80/60 10/5-80/20 2/25-80/20 14/5-80/20 2/35-80/20