Subtract 10/80 from 10/9
1st number: 1 1/9, 2nd number: 10/80
10/9 - 10/80 is 71/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 9 × 80 = 720,
10/9 = 10 × 80/9 × 80 = 800/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Subtract the two like fractions:
800/720 - 90/720 = 800 - 90/720 = 710/720 - After reducing the fraction, the answer is 71/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9-10/80 10/9-20/80 10/18-10/80 30/9-10/80 10/9-30/80 10/27-10/80 50/9-10/80 10/9-50/80 10/45-10/80 70/9-10/80 10/9-70/80 10/63-10/80