When the Spring Festival comes, my mother goes to the supermarket to buy candy. The money she brings can only buy 40 kg of toffee, or 60 kg of halva. Now that my mother has bought 16 kg of toffee, how many kg of halva can I buy with the remaining money?
春节到了，妈妈到超市买糖果，她所带的钱正好只能买奶糖40千克，或者酥糖60千克，现在妈妈已经买了16千克奶糖，余下的钱还能买多少千克酥糖？
<gadget id="calculator">1 / 40</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">(1/40) * 16</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 60</gadget>
<output>1/60 = around 0.016667</output>

<gadget id="calculator">(3/5) / (1/60)</gadget>
<output>36</output>

<result>36</result>