Subtract 21/6 from 54/5
1st number: 10 4/5, 2nd number: 3 3/6
54/5 - 21/6 is 73/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 6 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
54/5 = 54 × 6/5 × 6 = 324/30 - Likewise, for the 2nd fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Subtract the two like fractions:
324/30 - 105/30 = 324 - 105/30 = 219/30 - After reducing the fraction, the answer is 73/10
- In mixed form: 73/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-42/6 54/10-21/6 54/5-21/12 54/5-63/6 54/15-21/6 54/5-21/18 54/25-21/6 54/5-21/30 54/35-21/6 54/5-21/42