Subtract 7/12 from 12/27
12/27 - 7/12 is -5/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
12/27 = 12 × 4/27 × 4 = 48/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
7/12 = 7 × 9/12 × 9 = 63/108 - Subtract the two like fractions:
48/108 - 63/108 = 48 - 63/108 = -15/108 - After reducing the fraction, the answer is -5/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27-7/12 12/27-14/12 12/54-7/12 12/27-7/24 36/27-7/12 12/27-21/12 12/81-7/12 12/27-7/36 60/27-7/12 12/27-35/12 12/27-7/60 84/27-7/12 12/27-49/12 12/27-7/84