Paint on the 6 sides of a cube, how many sides should be painted red in order to make the possibility of red facing up is (1/3).
在一个正方体的6个面上分别涂上颜色，要使红色朝上的可能性是(1/3)，应该有多少个面涂上红色．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 * (1/3)</gadget>
<output>2</output>

<result>2</result>