Subtract 15/27 from 1/12
1/12 - 15/27 is -17/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
1/12 = 1 × 9/12 × 9 = 9/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
15/27 = 15 × 4/27 × 4 = 60/108 - Subtract the two like fractions:
9/108 - 60/108 = 9 - 60/108 = -51/108 - After reducing the fraction, the answer is -17/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12-15/27 1/12-30/27 1/24-15/27 1/12-15/54 3/12-15/27 1/12-45/27 1/36-15/27 1/12-15/81 5/12-15/27 1/12-75/27 1/60-15/27 7/12-15/27 1/84-15/27