Answers

Add 81/63 and 27/18

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

81/63 + 27/18 is 39/14.

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,
   81/63 = 81 × 2/63 × 2 = 162/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   27/18 = 27 × 7/18 × 7 = 189/126
4. Add the two like fractions:
   162/126 + 189/126 = 162 + 189/126 = 351/126
5. 351/126 simplified gives 39/14
6. So, 81/63 + 27/18 = 39/14
   In mixed form: 211/14

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