Answers

Add 28/4 and 7/81

1^st number: 7 0/4, 2^nd number: 7/81

28/4 + 7/81 is 574/81.

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,
   28/4 = 28 × 81/4 × 81 = 2268/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   7/81 = 7 × 4/81 × 4 = 28/324
4. Add the two like fractions:
   2268/324 + 28/324 = 2268 + 28/324 = 2296/324
5. 2296/324 simplified gives 574/81
6. So, 28/4 + 7/81 = 574/81
   In mixed form: 77/81

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