Subtract 72/12 from 30/14
1st number: 2 2/14, 2nd number: 6 0/12
30/14 - 72/12 is -27/7.
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,
30/14 = 30 × 6/14 × 6 = 180/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
72/12 = 72 × 7/12 × 7 = 504/84 - Subtract the two like fractions:
180/84 - 504/84 = 180 - 504/84 = -324/84 - After reducing the fraction, the answer is -27/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-72/12 30/28-72/12 30/14-72/24 90/14-72/12 30/42-72/12 30/14-72/36 30/70-72/12 30/14-72/60 30/98-72/12 30/14-72/84