Answers

Add 72/14 and 20/81

1^st number: 5 2/14, 2^nd number: 20/81

72/14 + 20/81 is 3056/567.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 81 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 14 × 81 = 1134,
   72/14 = 72 × 81/14 × 81 = 5832/1134
3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
   20/81 = 20 × 14/81 × 14 = 280/1134
4. Add the two like fractions:
   5832/1134 + 280/1134 = 5832 + 280/1134 = 6112/1134
5. 6112/1134 simplified gives 3056/567
6. So, 72/14 + 20/81 = 3056/567
   In mixed form: 5221/567

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