Subtract 3/30 from 80/9
1st number: 8 8/9, 2nd number: 3/30
80/9 - 3/30 is 791/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
80/9 = 80 × 10/9 × 10 = 800/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
3/30 = 3 × 3/30 × 3 = 9/90 - Subtract the two like fractions:
800/90 - 9/90 = 800 - 9/90 = 791/90 - In mixed form: 871/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9-6/30 80/18-3/30 80/9-3/60 80/9-9/30 80/27-3/30 80/9-3/90 80/9-15/30 80/45-3/30 80/9-21/30 80/63-3/30