Subtract 40/18 from 30/6
1st number: 5 0/6, 2nd number: 2 4/18
30/6 - 40/18 is 25/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
30/6 = 30 × 3/6 × 3 = 90/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
40/18 = 40 × 1/18 × 1 = 40/18 - Subtract the two like fractions:
90/18 - 40/18 = 90 - 40/18 = 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: 60/6-40/18 30/6-80/18 30/12-40/18 30/6-40/36 90/6-40/18 30/18-40/18 30/6-40/54 30/6-40/90 30/42-40/18