Solution:Concept- In mathematics, rational numbers are expressed in pq format. Where q is non-zero. It is one of the most important math subjects. Fractions with a non-zero denominator are rational numbers.
Condition for terminating decimal is-
If the prime factors in the denominator of the lowest form of the fraction contain only 2 and / or 5 or no prime factors at all, then the fraction is an end decimal.
Let us check the condition for the given fractions
1) , Terminating decimal
2) Terminating decimal
3) Non Terminating
5) Terminating decimal
8) Terminating decimal
Hence, the correct answer is option 2) (1), (2), (5), (6) and (8)