⇒ 3 and 320 are co-prime.
Now, We have to write the denominator 320 in the form of 2n5m where, n and m are the non-negative numbers.
320 = 2×2×2×2×2×2×5 = 2⁶×5
∴ denominator is in the form 2n5m where, n = 6 and m = 1
Thus, is terminating decimal.
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