View the '>' sign as you would and '=' sign when solving for Q. As the > is like the = sign in that it separates two expressions that directly relate to eachother
Q-1/2>1/3 add 1/2 to both sides Q>1/2+1/3 convert 1/2 and 1/3 to ?/6 Q>3/6+2/6 solve Q>5/6