Subtract 20/14 from 30/12
1st number: 2 6/12, 2nd number: 1 6/14
30/12 - 20/14 is 15/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 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 14 × 6 = 84,
20/14 = 20 × 6/14 × 6 = 120/84 - Subtract the two like fractions:
210/84 - 120/84 = 210 - 120/84 = 90/84 - After reducing the fraction, the answer is 15/14
- In mixed form: 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12-20/14 30/12-40/14 30/24-20/14 30/12-20/28 90/12-20/14 30/12-60/14 30/36-20/14 30/12-20/42 30/60-20/14 30/12-20/70 30/84-20/14 30/12-20/98