#       
## Overview
We use the `to_r` Integer instance method to convert an integer to a rational.
## Syntax
```ruby
integer.to_r
```
## Parameters
This method does not take any parameters.
## Return value
This method returns the `integer` as a rational.
## Example
Let's look at the code below:


# create some integer values
int1 = 2
int2 = 3**4
int3 = 4*5-2
int4 = 100

# convert to rationals 
# and print results
puts int1.to_r
puts int2.to_r
puts int3.to_r
puts int4.to_r

# 
## Explanation
* **Lines 2 to 5**: We create some integer instances. 
* **Lines 9 to 12**: We use the to `_r` method to convert instances to rationals and the values are printed to the console.

What is integer.to_r in Ruby?

Converts an integer to a rational using `to_r`. It takes no parameters and returns a rational value.