Answers

Add 54/81 and 72/36

1^st number: 54/81, 2^nd number: 2 0/36

54/81 + 72/36 is 8/3.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 36 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   54/81 = 54 × 4/81 × 4 = 216/324
3. Likewise, for the 2nd fraction, since 36 × 9 = 324,
   72/36 = 72 × 9/36 × 9 = 648/324
4. Add the two like fractions:
   216/324 + 648/324 = 216 + 648/324 = 864/324
5. 864/324 simplified gives 8/3
6. So, 54/81 + 72/36 = 8/3
   In mixed form: 22/3

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