Question

Find the unknown number in the proportion. Reduce your answer to lowest terms. 3/n = 9/11/8

Answer 1

$\frac{3}{n}=\frac{9}{\frac{11}{8}}$

we can re-write the right-hand side

That is;

$\frac{3}{n}=9\times\frac{8}{11}$$\frac{3}{n}=\frac{72}{11}$

cross-multiply

$72\times n=3\times11$

72 n = 33

Divide both-side of the equation by 72

$\frac{72n}{72}=\frac{33}{72}$$n=\frac{33}{72}$$n=\frac{11}{24}$