Subtract 15/7 from 4/12
1st number: 4/12, 2nd number: 2 1/7
4/12 - 15/7 is -38/21.
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,
4/12 = 4 × 7/12 × 7 = 28/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
15/7 = 15 × 12/7 × 12 = 180/84 - Subtract the two like fractions:
28/84 - 180/84 = 28 - 180/84 = -152/84 - After reducing the fraction, the answer is -38/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12-15/7 4/12-30/7 4/24-15/7 4/12-15/14 4/12-45/7 4/36-15/7 4/12-15/21 20/12-15/7 4/12-75/7 4/60-15/7 4/12-15/35 28/12-15/7 4/84-15/7 4/12-15/49