Answers

Add 60/40 and 5/81

1^st number: 1 20/40, 2^nd number: 5/81

60/40 + 5/81 is 253/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 81 is 3240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3240
2. For the 1st fraction, since 40 × 81 = 3240,
   60/40 = 60 × 81/40 × 81 = 4860/3240
3. Likewise, for the 2nd fraction, since 81 × 40 = 3240,
   5/81 = 5 × 40/81 × 40 = 200/3240
4. Add the two like fractions:
   4860/3240 + 200/3240 = 4860 + 200/3240 = 5060/3240
5. 5060/3240 simplified gives 253/162
6. So, 60/40 + 5/81 = 253/162
   In mixed form: 191/162

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