Subtract 6/5 from 27/21
1st number: 1 6/21, 2nd number: 1 1/5
27/21 - 6/5 is 3/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
27/21 = 27 × 5/21 × 5 = 135/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
6/5 = 6 × 21/5 × 21 = 126/105 - Subtract the two like fractions:
135/105 - 126/105 = 135 - 126/105 = 9/105 - After reducing the fraction, the answer is 3/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-6/5 27/21-12/5 27/42-6/5 27/21-6/10 81/21-6/5 27/21-18/5 27/63-6/5 27/21-6/15 27/21-30/5 27/21-6/25 27/21-42/5 27/21-6/35