Answers

Add 72/4 and 50/81

1^st number: 18 0/4, 2^nd number: 50/81

72/4 + 50/81 is 1508/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 4 × 81 = 324,
   72/4 = 72 × 81/4 × 81 = 5832/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   50/81 = 50 × 4/81 × 4 = 200/324
4. Add the two like fractions:
   5832/324 + 200/324 = 5832 + 200/324 = 6032/324
5. 6032/324 simplified gives 1508/81
6. So, 72/4 + 50/81 = 1508/81
   In mixed form: 1850/81

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