$L.C.M.(115, 25) = \ldots$

For some integer $q$,every odd integer is of the form

State whether the following rational number has a terminating decimal expansion or not. If it has a terminating decimal expansion,find it: $\frac{29}{343}$

Without actually performing the long division,find if $\frac{987}{10500}$ will have a terminating or non-terminating (repeating) decimal expansion. Give reasons for your answer.

State whether the following rational number has a terminating decimal expansion or not. If it has,then find it: $\frac{55}{150}$

Prove that $8^{n}$ cannot end in zero for any natural number $n \in N$.