Question

express 0.9bar in form of p/q ​

Answer 1

let us consider x= 0.999...... (I)

Multiply by 10 in equation (l)

10x = 9.999..........(ll)

subtracting equation (l) from (ll)

10x-x = 9.999-0.999

9x = 9

x=1

I hope it will help u