Subtract 24/9 from 63/21
1st number: 3 0/21, 2nd number: 2 6/9
63/21 - 24/9 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
63/21 = 63 × 3/21 × 3 = 189/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
24/9 = 24 × 7/9 × 7 = 168/63 - Subtract the two like fractions:
189/63 - 168/63 = 189 - 168/63 = 21/63 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/21-48/9 63/42-24/9 63/21-24/18 63/21-72/9 63/21-24/27 63/21-24/45 63/21-24/63