Subtract 27/14 from 21/6
1st number: 3 3/6, 2nd number: 1 13/14
21/6 - 27/14 is 11/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
27/14 = 27 × 3/14 × 3 = 81/42 - Subtract the two like fractions:
147/42 - 81/42 = 147 - 81/42 = 66/42 - After reducing the fraction, the answer is 11/7
- In mixed form: 14/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-27/14 21/6-54/14 21/12-27/14 21/6-27/28 63/6-27/14 21/6-81/14 21/18-27/14 21/6-27/42 21/30-27/14 21/6-27/70 21/42-27/14 21/6-27/98