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प्रश्न
Express the following decimal in the form `p/q`: `0.bar4`
उत्तर
Let `x=0.bar4`
⇒ x = 0.44444....
⇒ 10x = 4.444....
⇒ 10x = 4 + x
⇒ 9x = 4
⇒ x = 4/9
Hence, `0.bar4=4/9`
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