Subtract 15/7 from 12/6
1st number: 2 0/6, 2nd number: 2 1/7
12/6 - 15/7 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
12/6 = 12 × 7/6 × 7 = 84/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
15/7 = 15 × 6/7 × 6 = 90/42 - Subtract the two like fractions:
84/42 - 90/42 = 84 - 90/42 = -6/42 - After reducing the fraction, the answer is -1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-15/7 12/6-30/7 12/6-15/14 36/6-15/7 12/6-45/7 12/18-15/7 12/6-15/21 60/6-15/7 12/6-75/7 12/30-15/7 12/6-15/35 84/6-15/7 12/42-15/7 12/6-15/49