A bag of flour weighs 10 kilograms. After eating (1/2) and eating (1/2) kilograms, how many kilograms are left
一袋面粉重10千克，吃了(1/2)后，又吃了(1/2)千克，还剩多少千克
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">10 * (1/2)</gadget>
<output>5</output>

<gadget id="calculator">5 - (1/2)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>