Answers

Add 63/21 and 1/9

1^st number: 3 0/21, 2^nd number: 1/9

63/21 + 1/9 is 28/9.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 21 × 3 = 63,
   63/21 = 63 × 3/21 × 3 = 189/63
3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
   1/9 = 1 × 7/9 × 7 = 7/63
4. Add the two like fractions:
   189/63 + 7/63 = 189 + 7/63 = 196/63
5. 196/63 simplified gives 28/9
6. So, 63/21 + 1/9 = 28/9
   In mixed form: 31/9

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