Subtract 8/14 from 27/21
1st number: 1 6/21, 2nd number: 8/14
27/21 - 8/14 is 5/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
8/14 = 8 × 3/14 × 3 = 24/42 - Subtract the two like fractions:
54/42 - 24/42 = 54 - 24/42 = 30/42 - After reducing the fraction, the answer is 5/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-8/14 27/21-16/14 27/42-8/14 27/21-8/28 81/21-8/14 27/21-24/14 27/63-8/14 27/21-8/42 27/21-40/14 27/21-8/70 27/21-56/14 27/21-8/98