Subtract 4/7 from 30/12
1st number: 2 6/12, 2nd number: 4/7
30/12 - 4/7 is 27/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
30/12 = 30 × 7/12 × 7 = 210/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
4/7 = 4 × 12/7 × 12 = 48/84 - Subtract the two like fractions:
210/84 - 48/84 = 210 - 48/84 = 162/84 - After reducing the fraction, the answer is 27/14
- In mixed form: 113/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-4/7 30/12-8/7 30/24-4/7 30/12-4/14 90/12-4/7 30/12-12/7 30/36-4/7 30/12-4/21 30/12-20/7 30/60-4/7 30/12-4/35 30/12-28/7 30/84-4/7 30/12-4/49