(2/5) of (15/2) meters is equal to (3/2) times of how many meters.
(15/2)米的(2/5)与多少米的(3/2)倍相等．
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(2/5) / (3/2)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(15/2) * (4/15)</gadget>
<output>2</output>

<result>2</result>