Subtract 80/9 from 1/30
1st number: 1/30, 2nd number: 8 8/9
1/30 - 80/9 is -797/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
1/30 = 1 × 3/30 × 3 = 3/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
80/9 = 80 × 10/9 × 10 = 800/90 - Subtract the two like fractions:
3/90 - 800/90 = 3 - 800/90 = -797/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30-80/9 1/60-80/9 1/30-80/18 3/30-80/9 1/90-80/9 1/30-80/27 5/30-80/9 1/30-80/45 7/30-80/9 1/30-80/63