Answers

Add 80/5 and 7/81

1^st number: 16 0/5, 2^nd number: 7/81

80/5 + 7/81 is 1303/81.

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,
   80/5 = 80 × 81/5 × 81 = 6480/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   7/81 = 7 × 5/81 × 5 = 35/405
4. Add the two like fractions:
   6480/405 + 35/405 = 6480 + 35/405 = 6515/405
5. 6515/405 simplified gives 1303/81
6. So, 80/5 + 7/81 = 1303/81
   In mixed form: 167/81

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