Subtract 3/18 from 27/12
1st number: 2 3/12, 2nd number: 3/18
27/12 - 3/18 is 25/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 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 18 × 2 = 36,
3/18 = 3 × 2/18 × 2 = 6/36 - Subtract the two like fractions:
81/36 - 6/36 = 81 - 6/36 = 75/36 - After reducing the fraction, the answer is 25/12
- In mixed form: 21/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-3/18 27/12-6/18 27/24-3/18 27/12-3/36 81/12-3/18 27/12-9/18 27/36-3/18 27/12-3/54 27/12-15/18 27/60-3/18 27/12-3/90 27/12-21/18 27/84-3/18