\(3,42 - 2\frac{5}{8}\) : \(\frac{1}{50}\)

Решение:

1. 
   
   2\(\frac{5}{8}\) = 2.625
   
   


2. 
   
   3.42 - 2.625 = 0.795
   
   


3. 
   
   \(\frac{1}{50}\) = 0.02
   
   


4. 
   
   0.795 : 0.02 = 39.75
   
   

Ответ: 39.75