Subtract 10/80 from 20/9
1st number: 2 2/9, 2nd number: 10/80
20/9 - 10/80 is 151/72.
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,
20/9 = 20 × 80/9 × 80 = 1600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
10/80 = 10 × 9/80 × 9 = 90/720 - Subtract the two like fractions:
1600/720 - 90/720 = 1600 - 90/720 = 1510/720 - After reducing the fraction, the answer is 151/72
- In mixed form: 27/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9-10/80 20/9-20/80 20/18-10/80 60/9-10/80 20/9-30/80 20/27-10/80 20/9-50/80 20/45-10/80 20/9-70/80 20/63-10/80