Subtract 7/80 from 14/18
14/18 - 7/80 is 497/720.
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,
14/18 = 14 × 40/18 × 40 = 560/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Subtract the two like fractions:
560/720 - 63/720 = 560 - 63/720 = 497/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18-7/80 14/18-14/80 14/36-7/80 42/18-7/80 14/18-21/80 14/54-7/80 70/18-7/80 14/18-35/80 14/90-7/80 98/18-7/80 14/18-49/80