Terminating or Recurring by Boxed Rockets

Do these fractions convert to terminating or recurring decimals?

Question 1:

\frac{1}{2}

Terminating

Question 2:

\frac{21}{25}

Terminating

Question 3:

\frac{391}{420}

Recurring

Question 4:

\frac{3271}{6300}

Recurring

Question 5:

\frac{133}{150}

Recurring

Question 6:

\frac{11}{42}

Recurring