Answers

Add 75/15 and 4/81

1^st number: 5 0/15, 2^nd number: 4/81

75/15 + 4/81 is 409/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 15 × 27 = 405,
   75/15 = 75 × 27/15 × 27 = 2025/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   4/81 = 4 × 5/81 × 5 = 20/405
4. Add the two like fractions:
   2025/405 + 20/405 = 2025 + 20/405 = 2045/405
5. 2045/405 simplified gives 409/81
6. So, 75/15 + 4/81 = 409/81
   In mixed form: 54/81

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