Subtract 56/9 from 30/12
1st number: 2 6/12, 2nd number: 6 2/9
30/12 - 56/9 is -67/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
30/12 = 30 × 3/12 × 3 = 90/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
56/9 = 56 × 4/9 × 4 = 224/36 - Subtract the two like fractions:
90/36 - 224/36 = 90 - 224/36 = -134/36 - After reducing the fraction, the answer is -67/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-56/9 30/24-56/9 30/12-56/18 90/12-56/9 30/36-56/9 30/12-56/27 30/60-56/9 30/12-56/45 30/84-56/9 30/12-56/63