Subtract 40/36 from 30/12
1st number: 2 6/12, 2nd number: 1 4/36
30/12 - 40/36 is 25/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
30/12 = 30 × 3/12 × 3 = 90/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
40/36 = 40 × 1/36 × 1 = 40/36 - Subtract the two like fractions:
90/36 - 40/36 = 90 - 40/36 = 50/36 - After reducing the fraction, the answer is 25/18
- In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-40/36 30/12-80/36 30/24-40/36 30/12-40/72 90/12-40/36 30/36-40/36 30/60-40/36 30/84-40/36