Answers

Add 72/63 and 18/6

1^st number: 1 9/63, 2^nd number: 3 0/6

72/63 + 18/6 is 29/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 6 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   72/63 = 72 × 2/63 × 2 = 144/126
3. Likewise, for the 2nd fraction, since 6 × 21 = 126,
   18/6 = 18 × 21/6 × 21 = 378/126
4. Add the two like fractions:
   144/126 + 378/126 = 144 + 378/126 = 522/126
5. 522/126 simplified gives 29/7
6. So, 72/63 + 18/6 = 29/7
   In mixed form: 41/7

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