Question

0.47 only on 7 bar express in p/q

Answer 1

let x = 0.4777..... 1 eq.
multiply both sides by 10 because bar is on 1 digit ( 7 )
10x = 4.777.... 2 eq.
subtract eq. 1 from 2
10x-x = 4.777... - 0.477.....
9x = 4.3
x = 43/9×10
x = 43/90