Subtract 3/10 from 80/4
1st number: 20 0/4, 2nd number: 3/10
80/4 - 3/10 is 197/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 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 10 × 2 = 20,
3/10 = 3 × 2/10 × 2 = 6/20 - Subtract the two like fractions:
400/20 - 6/20 = 400 - 6/20 = 394/20 - After reducing the fraction, the answer is 197/10
- In mixed form: 197/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-6/10 80/8-3/10 80/4-3/20 80/4-9/10 80/12-3/10 80/4-3/30 80/4-15/10 80/20-3/10 80/4-3/50 80/4-21/10 80/28-3/10 80/4-3/70