Subtract 4/54 from 21/6
1st number: 3 3/6, 2nd number: 4/54
21/6 - 4/54 is 185/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 6 × 9 = 54,
21/6 = 21 × 9/6 × 9 = 189/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
4/54 = 4 × 1/54 × 1 = 4/54 - Subtract the two like fractions:
189/54 - 4/54 = 189 - 4/54 = 185/54 - In mixed form: 323/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-4/54 21/6-8/54 21/12-4/54 63/6-4/54 21/6-12/54 21/18-4/54 21/6-20/54 21/30-4/54 21/6-28/54 21/42-4/54