Subtract 4/21 from 54/6
1st number: 9 0/6, 2nd number: 4/21
54/6 - 4/21 is 185/21.
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,
54/6 = 54 × 7/6 × 7 = 378/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Subtract the two like fractions:
378/42 - 8/42 = 378 - 8/42 = 370/42 - After reducing the fraction, the answer is 185/21
- In mixed form: 817/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/6-8/21 54/12-4/21 54/6-4/42 54/6-12/21 54/18-4/21 54/6-4/63 54/6-20/21 54/30-4/21 54/6-28/21 54/42-4/21