Subtract 10/15 from 80/18
1st number: 4 8/18, 2nd number: 10/15
80/18 - 10/15 is 34/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
80/18 = 80 × 5/18 × 5 = 400/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
10/15 = 10 × 6/15 × 6 = 60/90 - Subtract the two like fractions:
400/90 - 60/90 = 400 - 60/90 = 340/90 - After reducing the fraction, the answer is 34/9
- In mixed form: 37/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-20/15 80/36-10/15 80/18-10/30 80/18-30/15 80/54-10/15 80/18-10/45 80/18-50/15 80/90-10/15 80/18-10/75 80/18-70/15