Question

Which of the following fraction is terminating decimal?

• A. $\frac{7}{3}$
• B. $\frac{21}{80}$
• C. $\frac{5}{6}$
• D. $\frac{44}{63}$

Answer 1

The correct option is B

$\frac{21}{80}$

In $\frac{21}{80}$, denominator $80=2\times 2\times 2\times 2\times 5=2^4{5}^1$

which is of the form $2^p{5}^q$. Hence, the fraction is a terminating decimal.