Question

Express 1.272727....=1.27(bar in 27) in the form of p /q where p and q are integers and q is not equal to 0?

Answer 1

let;
         x=1.27272727272727......
    their is a bar for two numbers so u  should multiply x with 100 and also if their is bar for one digits u should multiply x with 10, if their was bar for 3 digits than multiply x with 1000 ok and follow this steps
 

so, here we can that bar for two digits so multiply x with 100 u will get the answer as 127.272727......etc 
  now  100x will be 127.2727..... etc

now subtract the 100x -x u will get like this 

               100x = 127. 2727........etc,
                 -   x =     1. 272727.......etc

   the answer u will get  as =126.0000000

if u like this answer plz make this answer in to brainliest answer ok all the best :)
 





 

Answer 2

Answer:

1.27272727.........................=\frac{126}{99}=

99

126

Step-by-step explanation:

Concept:

A number of the form p/q , where p and q are integers and q not equal to zero is called rational number.

Any rational number can be written as

a terminating decimal expansion or non-terminating decimal expansion.

Let

x=1.272727272727...............(1)

Multiply both sides by 100

100x=127.272727................(2)

subtract (1) from (2)

100x - x = 126

99x = 126

x=\frac{126}{99}x=

99

126