Subtract 25/20 from 80/4
1st number: 20 0/4, 2nd number: 1 5/20
80/4 - 25/20 is 75/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
80/4 = 80 × 5/4 × 5 = 400/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
25/20 = 25 × 1/20 × 1 = 25/20 - Subtract the two like fractions:
400/20 - 25/20 = 400 - 25/20 = 375/20 - After reducing the fraction, the answer is 75/4
- In mixed form: 183/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-50/20 80/8-25/20 80/4-25/40 80/4-75/20 80/12-25/20 80/4-25/60 80/20-25/20 80/28-25/20