Solving equations. (3/4)x+(1/2)*(3/4)=1x*((3/4)-(2/3))=(2/3).
解方程．(3/4)x+(1/2)*(3/4)=1x*((3/4)-(2/3))=(2/3)．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) * 12</gadget>
<output>8</output>

<result>8</result>