Answers

Add 30/18 and 70/63

1^st number: 1 12/18, 2^nd number: 1 7/63

30/18 + 70/63 is 25/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   30/18 = 30 × 7/18 × 7 = 210/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   70/63 = 70 × 2/63 × 2 = 140/126
4. Add the two like fractions:
   210/126 + 140/126 = 210 + 140/126 = 350/126
5. 350/126 simplified gives 25/9
6. So, 30/18 + 70/63 = 25/9
   In mixed form: 27/9

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