Add 8/63 and 63/21
1st number: 8/63, 2nd number: 3 0/21
8/63 + 63/21 is 197/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
8/63 = 8 × 1/63 × 1 = 8/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
63/21 = 63 × 3/21 × 3 = 189/63 - Add the two like fractions:
8/63 + 189/63 = 8 + 189/63 = 197/63 - So, 8/63 + 63/21 = 197/63
In mixed form: 38/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/63+63/21 8/63+63/42 24/63+63/21 40/63+63/21 56/63+63/21