Subtract 30/36 from 27/12
1st number: 2 3/12, 2nd number: 30/36
27/12 - 30/36 is 17/12.
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,
27/12 = 27 × 3/12 × 3 = 81/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
30/36 = 30 × 1/36 × 1 = 30/36 - Subtract the two like fractions:
81/36 - 30/36 = 81 - 30/36 = 51/36 - After reducing the fraction, the answer is 17/12
- In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-30/36 27/12-60/36 27/24-30/36 27/12-30/72 81/12-30/36 27/12-90/36 27/36-30/36 27/60-30/36 27/84-30/36