Subtract 6/63 from 54/21
1st number: 2 12/21, 2nd number: 6/63
54/21 - 6/63 is 52/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
54/21 = 54 × 3/21 × 3 = 162/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
6/63 = 6 × 1/63 × 1 = 6/63 - Subtract the two like fractions:
162/63 - 6/63 = 162 - 6/63 = 156/63 - After reducing the fraction, the answer is 52/21
- In mixed form: 210/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-12/63 54/42-6/63 54/21-18/63 54/63-6/63 54/21-30/63 54/21-42/63