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Express the rational number 0.4 bar(5 in the form p/q where p and q are natural number.
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13/06/2021 12:19 pm
Let x = \(0.4 \bar 5 \)
or x = 0.4555 ......(i)
Multiply both sides by 10, we get
10x = 4.555 ......(ii)
Multiply equation (ii) by 10
100x = 45.555 .......(iii)
equation (iii)  (ii) subtract
100x  10x = 45.555 = 4.555.....
90x = 41
x = \(\frac{41}{90} \)
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