Question

Change 0.57 bar as rational number​

Answer 1

Answer:

Step-by-step explanation:

if the bar is on  57

let ,0.57 bar = x- equation 1

   57.57 = 100 x [ multiplying 100 on both sides ] - equation 2

  subtracting  equation 2 from  equation 1

57.57 - 0.57 = 100 x - x  [ note : we will subtract lhs from lhs and rhs from rhs }

57 = 99 x

57 / 99 = x

19/11 = x

1.7272727....... = x

1.72 bar = x

if the bar is only on 7

let 0.57 bar = x- equation 1

57 .77 = 100x    - equation 2

subtracting  equation 2 from  equation 1

      --        --

57.77 - 0.57 = 100 x - x

57.2 = 99 x

57.2/ 99 = x

=0.577.... = x

0.5 7 bar = x