Subtract 42/18 from 80/9
1st number: 8 8/9, 2nd number: 2 6/18
80/9 - 42/18 is 59/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
80/9 = 80 × 2/9 × 2 = 160/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
42/18 = 42 × 1/18 × 1 = 42/18 - Subtract the two like fractions:
160/18 - 42/18 = 160 - 42/18 = 118/18 - After reducing the fraction, the answer is 59/9
- In mixed form: 65/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9-84/18 80/18-42/18 80/9-42/36 80/27-42/18 80/9-42/54 80/45-42/18 80/9-42/90 80/63-42/18