Question

Tell whether the ratios form a proportion.
3 13
— , —-
8 40

Answer 1

`\cfrac{3}{8}~~ \\e ~~\cfrac{13}{40}\qquad \begin{array}{llll} \textit{unequal simplified fractions}\\ \textit{\underline{not a proportion}} \end{array}`

bear in mind that 3 and 13 are both prime numbers, thus not reducible.