Subtract 8/21 from 8/14
8/14 - 8/21 is 4/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
8/14 = 8 × 3/14 × 3 = 24/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
8/21 = 8 × 2/21 × 2 = 16/42 - Subtract the two like fractions:
24/42 - 16/42 = 24 - 16/42 = 8/42 - After reducing the fraction, the answer is 4/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/14-8/21 8/14-16/21 8/28-8/21 8/14-8/42 24/14-8/21 8/14-24/21 8/42-8/21 8/14-8/63 40/14-8/21 8/14-40/21 8/70-8/21 56/14-8/21 8/14-56/21 8/98-8/21