Subtract 20/18 from 35/9
1st number: 3 8/9, 2nd number: 1 2/18
35/9 - 20/18 is 25/9.
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,
35/9 = 35 × 2/9 × 2 = 70/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
20/18 = 20 × 1/18 × 1 = 20/18 - Subtract the two like fractions:
70/18 - 20/18 = 70 - 20/18 = 50/18 - After reducing the fraction, the answer is 25/9
- In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-20/18 35/9-40/18 35/18-20/18 35/9-20/36 35/9-60/18 35/27-20/18 35/9-20/54 35/45-20/18 35/9-20/90 35/63-20/18