A supermarket bought 200 catties of watermelon, sold (1/4) in the morning, and sold the rest (1/6) in the afternoon, how many catties are left.
超市里购进200斤西瓜，上午出售了(1/4)，下午出售了剩下的(1/6)，剩下的多少斤．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">200 * (1/4)</gadget>
<output>50</output>

<gadget id="calculator">200 - 50</gadget>
<output>150</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">150 * (1/6)</gadget>
<output>25</output>

<gadget id="calculator">200 - 50 - 25</gadget>
<output>125</output>

<result>125</result>