Subtract 21/27 from 6/4
1st number: 1 2/4, 2nd number: 21/27
6/4 - 21/27 is 13/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
6/4 = 6 × 27/4 × 27 = 162/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
21/27 = 21 × 4/27 × 4 = 84/108 - Subtract the two like fractions:
162/108 - 84/108 = 162 - 84/108 = 78/108 - After reducing the fraction, the answer is 13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/4-21/27 6/4-42/27 6/8-21/27 6/4-21/54 18/4-21/27 6/4-63/27 6/12-21/27 6/4-21/81 30/4-21/27 6/20-21/27 42/4-21/27 6/28-21/27