Answers

Add 42/81 and 84/45

1^st number: 42/81, 2^nd number: 1 39/45

42/81 + 84/45 is 322/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 45 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   42/81 = 42 × 5/81 × 5 = 210/405
3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
   84/45 = 84 × 9/45 × 9 = 756/405
4. Add the two like fractions:
   210/405 + 756/405 = 210 + 756/405 = 966/405
5. 966/405 simplified gives 322/135
6. So, 42/81 + 84/45 = 322/135
   In mixed form: 252/135

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