Answers

Add 12/63 and 70/18

1^st number: 12/63, 2^nd number: 3 16/18

12/63 + 70/18 is 257/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   12/63 = 12 × 2/63 × 2 = 24/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   70/18 = 70 × 7/18 × 7 = 490/126
4. Add the two like fractions:
   24/126 + 490/126 = 24 + 490/126 = 514/126
5. 514/126 simplified gives 257/63
6. So, 12/63 + 70/18 = 257/63
   In mixed form: 45/63

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