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प्रश्न
Express each of the following as a rational number in its simplest form:
(i`) 0.bar (8)`
उत्तर
Let x = `bar(0.8)`
∴ x = 0.888 …(1)
10x = 8.888 …(2)
On subtracting equation (1) from (2), we get
9x = 8 ⇒ x =` 8/9`
∴0.8 =`bar(8)/9`
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