Subtract 15/20 from 80/75
1st number: 1 5/75, 2nd number: 15/20
80/75 - 15/20 is 19/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
80/75 = 80 × 4/75 × 4 = 320/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
15/20 = 15 × 15/20 × 15 = 225/300 - Subtract the two like fractions:
320/300 - 225/300 = 320 - 225/300 = 95/300 - After reducing the fraction, the answer is 19/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/75-30/20 80/75-15/40 80/75-45/20 80/75-15/60 80/75-75/20