Subtract 15/21 from 27/6
1st number: 4 3/6, 2nd number: 15/21
27/6 - 15/21 is 53/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
27/6 = 27 × 7/6 × 7 = 189/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Subtract the two like fractions:
189/42 - 30/42 = 189 - 30/42 = 159/42 - After reducing the fraction, the answer is 53/14
- In mixed form: 311/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/6-15/21 27/6-30/21 27/12-15/21 27/6-15/42 81/6-15/21 27/6-45/21 27/18-15/21 27/6-15/63 27/6-75/21 27/30-15/21 27/42-15/21