Answers

Add 72/63 and 8/18

1^st number: 1 9/63, 2^nd number: 8/18

72/63 + 8/18 is 100/63.

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,
   72/63 = 72 × 2/63 × 2 = 144/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   8/18 = 8 × 7/18 × 7 = 56/126
4. Add the two like fractions:
   144/126 + 56/126 = 144 + 56/126 = 200/126
5. 200/126 simplified gives 100/63
6. So, 72/63 + 8/18 = 100/63
   In mixed form: 137/63

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