Rational number is a number that can be written as a fraction with a numerator that is an integer and a denominator that is an integer other than 0.

An integer can be written as a fraction by giving it a denominator of one, therefore, any integer is a rational number. 5 = 5/1

Integers
 can be compared 
by using a number line.

Number Lines can also help 
when 
+  - 
integers

I IIIIIIIII
-5            -4            -3            -2            -1              0             1              2             3            4  

Integers are both
positive and negative whole numbers.

Positive numbers
 are those that are 
greater than zero (0)

Negative numbers 
are those that are
less than zero (0)

I IIIIIIIII
-5            -4            -3            -2            -1             0             1              2              3            4  

As you read a Number Line from left to right,
the numbers become greater.

For example:

-1  is greater than  -4,
because it is further to the right on the Number Line.

                                                     +1          +1            +1

I IIIIIIIII
-5           -4            -3             -2            -1             0             1              2              3             4                         -1            -1            -1     

Upon further review:

Number lines can:

* help determine greater than and less than

* help in adding (+), subtracting (-) integers .

positive numbers moves to the right,
and negative numbers move to the left

Let's Practice