Divide the number a by 240, the quotient is 18, then divide the number a by 180, what is the quotient.
数a除以240，商是18，那么用180去除数a，商是多少．
<gadget id="calculator">18 / 180</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">240 * (1/10)</gadget>
<output>24</output>

<result>24</result>