Subtract 2/7 from 8/12
8/12 - 2/7 is 8/21.
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,
8/12 = 8 × 7/12 × 7 = 56/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
2/7 = 2 × 12/7 × 12 = 24/84 - Subtract the two like fractions:
56/84 - 24/84 = 56 - 24/84 = 32/84 - After reducing the fraction, the answer is 8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12-2/7 8/12-4/7 8/24-2/7 8/12-2/14 24/12-2/7 8/12-6/7 8/36-2/7 8/12-2/21 40/12-2/7 8/12-10/7 8/60-2/7 8/12-2/35 56/12-2/7 8/12-14/7 8/84-2/7 8/12-2/49