Subtract 80/18 from 50/5
1st number: 10 0/5, 2nd number: 4 8/18
50/5 - 80/18 is 50/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
50/5 = 50 × 18/5 × 18 = 900/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
80/18 = 80 × 5/18 × 5 = 400/90 - Subtract the two like fractions:
900/90 - 400/90 = 900 - 400/90 = 500/90 - After reducing the fraction, the answer is 50/9
- In mixed form: 55/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/10-80/18 50/5-80/36 50/15-80/18 50/5-80/54 50/25-80/18 50/5-80/90 50/35-80/18