Perform the calculations on a calculator without rounding.

Following Exercise 56, show that the decimal equivalents of the following fractions indicate they are rational: 

(a) 1/3 

(b) 5/11

(c) 2/5. What is the repeating part of the decimal in (c)?

Data from Exercises 56

At some point in the decimal equivalent of a rational number, some sequence of digits will start repeating endlessly. An irrational number never has an endlessly repeating sequence of digits. Find the decimal equivalents of.