Subtract 2/80 from 15/18
15/18 - 2/80 is 97/120.
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,
15/18 = 15 × 40/18 × 40 = 600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
2/80 = 2 × 9/80 × 9 = 18/720 - Subtract the two like fractions:
600/720 - 18/720 = 600 - 18/720 = 582/720 - After reducing the fraction, the answer is 97/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-2/80 15/18-4/80 15/36-2/80 45/18-2/80 15/18-6/80 15/54-2/80 75/18-2/80 15/18-10/80 15/90-2/80 15/18-14/80