Question

`((3/5-1/7))/(1/35)`

use Keep change Flip

Answer 1

Explanation:

Answer 2

`\bf \cfrac{~~(3)/(5)-(1)/(7)~~}{(1)/(35)}\implies \cfrac{~~\stackrel{\textit{using an LCD of 35}}{((7)3-(5)1)/(35)}~~}{(1)/(35)}\implies \cfrac{~~(21-5)/(35)~~}{(1)/(35)}\implies \cfrac{~~(16)/(35)~~}{(1)/(35)} \\\\\\ \cfrac{16}{~~\begin{matrix} 35 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\cdot \cfrac{~~\begin{matrix} 35 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{1}\implies 16`