Subtract 7/80 from 10/18
10/18 - 7/80 is 337/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
10/18 = 10 × 40/18 × 40 = 400/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Subtract the two like fractions:
400/720 - 63/720 = 400 - 63/720 = 337/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18-7/80 10/18-14/80 10/36-7/80 30/18-7/80 10/18-21/80 10/54-7/80 50/18-7/80 10/18-35/80 10/90-7/80 70/18-7/80 10/18-49/80