Answers

Add 30/18 and 72/63

1^st number: 1 12/18, 2^nd number: 1 9/63

30/18 + 72/63 is 59/21.

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,
   72/63 = 72 × 2/63 × 2 = 144/126
4. Add the two like fractions:
   210/126 + 144/126 = 210 + 144/126 = 354/126
5. 354/126 simplified gives 59/21
6. So, 30/18 + 72/63 = 59/21
   In mixed form: 217/21

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