A bag of rice weighs 10 kg and has been eaten (4/5). How many kilograms did you eat?
一袋大米重10千克，已经吃了(4/5)．吃了多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">10 * (4/5)</gadget>
<output>8</output>

<result>8</result>