Subtract 80/20 from 80/15
1st number: 5 5/15, 2nd number: 4 0/20
80/15 - 80/20 is 4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
80/15 = 80 × 4/15 × 4 = 320/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
80/20 = 80 × 3/20 × 3 = 240/60 - Subtract the two like fractions:
320/60 - 240/60 = 320 - 240/60 = 80/60 - After reducing the fraction, the answer is 4/3
- In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-80/20 80/15-80/40 80/45-80/20 80/15-80/60 80/75-80/20