Add 63/21 and 21/5
1st number: 3 0/21, 2nd number: 4 1/5
63/21 + 21/5 is 36/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
63/21 = 63 × 5/21 × 5 = 315/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
21/5 = 21 × 21/5 × 21 = 441/105 - Add the two like fractions:
315/105 + 441/105 = 315 + 441/105 = 756/105 - 756/105 simplified gives 36/5
- So, 63/21 + 21/5 = 36/5
In mixed form: 71/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/21+42/5 63/42+21/5 63/21+21/10 63/21+63/5 63/21+21/15 63/21+21/25 63/21+21/35