Subtract 21/6 from 63/9
1st number: 7 0/9, 2nd number: 3 3/6
63/9 - 21/6 is 7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 6 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
63/9 = 63 × 2/9 × 2 = 126/18 - Likewise, for the 2nd fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Subtract the two like fractions:
126/18 - 63/18 = 126 - 63/18 = 63/18 - After reducing the fraction, the answer is 7/2
- In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/9-42/6 63/18-21/6 63/9-21/12 63/9-63/6 63/27-21/6 63/9-21/18 63/45-21/6 63/9-21/30 63/9-21/42