Subtract 30/80 from 10/9
1st number: 1 1/9, 2nd number: 30/80
10/9 - 30/80 is 53/72.
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,
30/80 = 30 × 9/80 × 9 = 270/720 - Subtract the two like fractions:
800/720 - 270/720 = 800 - 270/720 = 530/720 - After reducing the fraction, the answer is 53/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/9-30/80 10/9-60/80 10/18-30/80 30/9-30/80 10/9-90/80 10/27-30/80 50/9-30/80 10/45-30/80 70/9-30/80 10/63-30/80