Subtract 30/12 from 15/14
1st number: 1 1/14, 2nd number: 2 6/12
15/14 - 30/12 is -10/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
15/14 = 15 × 6/14 × 6 = 90/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
30/12 = 30 × 7/12 × 7 = 210/84 - Subtract the two like fractions:
90/84 - 210/84 = 90 - 210/84 = -120/84 - After reducing the fraction, the answer is -10/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14-30/12 15/14-60/12 15/28-30/12 15/14-30/24 45/14-30/12 15/14-90/12 15/42-30/12 15/14-30/36 75/14-30/12 15/70-30/12 15/14-30/60 15/98-30/12 15/14-30/84