Subtract 8/20 from 80/9
1st number: 8 8/9, 2nd number: 8/20
80/9 - 8/20 is 382/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
80/9 = 80 × 20/9 × 20 = 1600/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Subtract the two like fractions:
1600/180 - 72/180 = 1600 - 72/180 = 1528/180 - After reducing the fraction, the answer is 382/45
- In mixed form: 822/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9-16/20 80/18-8/20 80/9-8/40 80/9-24/20 80/27-8/20 80/9-8/60 80/9-40/20 80/45-8/20 80/9-56/20 80/63-8/20