Subtract 6/15 from 80/18
1st number: 4 8/18, 2nd number: 6/15
80/18 - 6/15 is 182/45.
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,
6/15 = 6 × 6/15 × 6 = 36/90 - Subtract the two like fractions:
400/90 - 36/90 = 400 - 36/90 = 364/90 - After reducing the fraction, the answer is 182/45
- In mixed form: 42/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-12/15 80/36-6/15 80/18-6/30 80/18-18/15 80/54-6/15 80/18-6/45 80/18-30/15 80/90-6/15 80/18-6/75 80/18-42/15