Subtract 27/21 from 6/4
1st number: 1 2/4, 2nd number: 1 6/21
6/4 - 27/21 is 3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
6/4 = 6 × 21/4 × 21 = 126/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
27/21 = 27 × 4/21 × 4 = 108/84 - Subtract the two like fractions:
126/84 - 108/84 = 126 - 108/84 = 18/84 - After reducing the fraction, the answer is 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/4-27/21 6/4-54/21 6/8-27/21 6/4-27/42 18/4-27/21 6/4-81/21 6/12-27/21 6/4-27/63 30/4-27/21 6/20-27/21 42/4-27/21 6/28-27/21