To find out whether the given fractions are terminating decimals, we need to do division and check.
On dividing, we get
16=0.1¯¯¯6, which is a recurring decimal.
17 =0.¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯142857, which is also a recurring decimal.
15=0.2, which is a terminating decimal.