Subtract 56/21 from 63/5
1st number: 12 3/5, 2nd number: 2 14/21
63/5 - 56/21 is 149/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
63/5 = 63 × 21/5 × 21 = 1323/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
56/21 = 56 × 5/21 × 5 = 280/105 - Subtract the two like fractions:
1323/105 - 280/105 = 1323 - 280/105 = 1043/105 - After reducing the fraction, the answer is 149/15
- In mixed form: 914/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/10-56/21 63/5-56/42 63/15-56/21 63/5-56/63 63/25-56/21 63/35-56/21