1.272727 can be expressed in the form of p/q, where p and q are integers and q is not equal to 0

Let,

x  = 1.27272727....                .........(1)

Multiply 100 on both side,we get

100 x =127.27272727.....       .........(2)

 

Subtracting equation (1) from equation (2) ,we get 

99x = 126.00⇒ x = 126 /99 

x =14/11. 

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if it is 1.272727 bar

let x be 1.272727 bar then 100x=127.272727 bar

100x-x=127.272727 bar-1.272727 bar

99x=126

x=126/99

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