Put 4 cubes of equal size in a row to form a cuboid. The surface area of this cuboid is equal to the surface area of the original 4 cubes.
把4个大小相等的正方体摆成一排，拼成一个长方体，这个长方体的表面积相当于原来4个正方体表面积的多少
<gadget id="calculator">1 * 6 * 4</gadget>
<output>24</output>

<gadget id="calculator">24 - 6</gadget>
<output>18</output>

<gadget id="calculator">18 / 24</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>