Question

hellppppwhat's the missing number? 7/16 = ?/64a) 4b) 21c) 28d) 55

Answer 1

Let x represent the missing number, and you'll now have;

$\begin{gathered} \frac{7}{16}=\frac{x}{64} \\ \text{Cross multiply and you have;} \\ 7\times64=16x \\ \text{Divide both sides by 16} \\ \frac{7\times64}{16}=\frac{16x}{16} \\ 7\times4=x \\ 28=x \end{gathered}$

Therefore, the missing number is 28