Answer :
Let x = 3.12777 ……eq (1)
Multiply eq (1) with 100
⇒ 100x = 312.777 ……eq (2)
Multiply (2) with 10
1000x = 3127.777 ……eq (3)
Subtracting eq (2) from eq (3)
⇒ 900x = 2815
⇒ which is of the form
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