Question

Sorry if it is not clear the question asks, Two squares of side x cm are removed from a square of side 3x cm as shown

(Look to Diagram)


Work out the fraction of the large square which remains. Give your answer in its simplest form.

Answer 1

`(3x)^2-2\cdot x^2=9x^2-2x^2=7x^2\\\\ (7x^2)/(9x^2)=\boxed{(7)/(9)}`