Subtract 30/12 from 8/27
1st number: 8/27, 2nd number: 2 6/12
8/27 - 30/12 is -119/54.
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,
8/27 = 8 × 4/27 × 4 = 32/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
30/12 = 30 × 9/12 × 9 = 270/108 - Subtract the two like fractions:
32/108 - 270/108 = 32 - 270/108 = -238/108 - After reducing the fraction, the answer is -119/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/27-30/12 8/27-60/12 8/54-30/12 8/27-30/24 24/27-30/12 8/27-90/12 8/81-30/12 8/27-30/36 40/27-30/12 8/27-30/60 56/27-30/12 8/27-30/84