Answers

Add 42/5 and 84/81

1^st number: 8 2/5, 2^nd number: 1 3/81

42/5 + 84/81 is 1274/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   42/5 = 42 × 81/5 × 81 = 3402/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   84/81 = 84 × 5/81 × 5 = 420/405
4. Add the two like fractions:
   3402/405 + 420/405 = 3402 + 420/405 = 3822/405
5. 3822/405 simplified gives 1274/135
6. So, 42/5 + 84/81 = 1274/135
   In mixed form: 959/135

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