Divide (2/15) into 4 equal parts, how much is each part?
把(2/15)平均分成4份，每份是多少．
<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(2/15) / 4</gadget>
<output>1/30 = around 0.033333</output>

<result>1/30 = around 0.033333</result>