need help pls!!!!!

[3 1/3] / [1/6] =[3 1/3] x 6 =20

scale factor of 1\6 foot to 3 1/3 feet

\(\frac{1}{6}\;:\; \frac{10}{3}\\ \frac{1}{6}\;:\; \frac{20}{6}\\ 1:20 \)

thanks!!!