Question

Write the number 0.5 in the form a/b using integers to show it is a rational number

A.5/11
B.5/10
C.5/100
D.2/1

Answer 1

The correct option is B.

Explanation:

The given number is 0.5.

If a number can be defined as a/b where b≠0, then it is called a rational number.

We need to rewrite the given number in the form of a/b using integers.

Multiply and divide the given number by 10 to remove the decimal from the given number.

`0.5* (10)/(10)`

On simplification we get

`(0.5* 10)/(10)`

`(5)/(10)`

Here a=5 and b=10 both are integers.

The given number 0.5 is a ration number because it can be written as 5/10.

Therefore the correct option is B.

Answer 2

As you know, the 5 in 0.5 is in the tenths place in the number, so means
5/10

Selection B is appropriate.