express the form in p/q 0.4bar7
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let × = 0.4777777...-----(i)
(multiply 10 on both LHS and RHS)
10x = 4.77777.... -----(ii)
Substract eq. (i) from eq (ii)
10x -x= 0.47777... - 4.7777
= 9x = 4.3
= x= 4.3/9
= 43/90
Therefore..ur answer is..
0.47777...=43/90
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