Subtract 10/9 from 80/30
1st number: 2 20/30, 2nd number: 1 1/9
80/30 - 10/9 is 14/9.
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,
80/30 = 80 × 3/30 × 3 = 240/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
10/9 = 10 × 10/9 × 10 = 100/90 - Subtract the two like fractions:
240/90 - 100/90 = 240 - 100/90 = 140/90 - After reducing the fraction, the answer is 14/9
- In mixed form: 15/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-20/9 80/60-10/9 80/30-10/18 80/30-30/9 80/90-10/9 80/30-10/27 80/30-50/9 80/30-10/45 80/30-70/9 80/30-10/63