(a) What is 0.36 repeating 36 expressed as a fraction in simplest form? (b) What is 0.36 repeating 6 expressed as a fraction in simplest form? (c) What is expressed 0.36 as a fraction in simplest form?
Please help

Respuesta :

a. 4/11
b. 11/30
c. 9/25

Answer:

a) [tex]x=\frac{4}{11}[/tex]    

b) [tex]x=\frac{11}{30}[/tex]  

c) [tex]x=\frac{9}{25}[/tex]  

Step-by-step explanation:

(a) Given : 0.36 repeating 36

To find : What is 0.36 repeating 36 expressed as a fraction in simplest form?

Solution :

Let [tex]x=0.36363636363.....[/tex]   ......(1)

Now as there are two digits repeating immediately after decimal point, we multiply above by  100  and get,

[tex]100x=36.36363636....[/tex]  .....(2)

Subtract equation (1) from (2),

[tex]99x=36[/tex]

[tex]x=\frac{36}{99}[/tex]

[tex]x=\frac{4}{11}[/tex]    

(b) Given : 0.36 repeating 6

To find : What is 0.36 repeating 6 expressed as a fraction in simplest form?

Solution :

Let [tex]x=0.3666666.....[/tex]   ......(1)

Now as there are one digits repeating immediately after decimal point, we multiply above by  10  and get,

[tex]10x=3.6666666....[/tex]  .....(2)

Subtract equation (1) from (2),

[tex]9x=3.3[/tex]

[tex]x=\frac{3.3}{9}[/tex]

[tex]x=\frac{11}{30}[/tex]  

(c) Given : 0.36

To find : What is expressed 0.36 as a fraction in simplest form?

Solution :

Let [tex]x=0.36[/tex]

[tex]x=\frac{36}{100}[/tex]

[tex]x=\frac{9}{25}[/tex]