Subtract 3/80 from 25/20
1st number: 1 5/20, 2nd number: 3/80
25/20 - 3/80 is 97/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
25/20 = 25 × 4/20 × 4 = 100/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Subtract the two like fractions:
100/80 - 3/80 = 100 - 3/80 = 97/80 - In mixed form: 117/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-3/80 25/20-6/80 25/40-3/80 75/20-3/80 25/20-9/80 25/60-3/80 25/20-15/80 25/20-21/80