Subtract 40/6 from 30/12
1st number: 2 6/12, 2nd number: 6 4/6
30/12 - 40/6 is -25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 6 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 12 × 1 = 12,
30/12 = 30 × 1/12 × 1 = 30/12 - Likewise, for the 2nd fraction, since 6 × 2 = 12,
40/6 = 40 × 2/6 × 2 = 80/12 - Subtract the two like fractions:
30/12 - 80/12 = 30 - 80/12 = -50/12 - After reducing the fraction, the answer is -25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-40/6 30/12-80/6 30/24-40/6 30/12-40/12 90/12-40/6 30/36-40/6 30/12-40/18 30/60-40/6 30/12-40/30 30/84-40/6 30/12-40/42