Mom bought 5 kilograms of bananas and ate (3/5), how many kilograms are left.
妈妈买来5千克香蕉，吃掉(3/5)，还剩多少千克．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">5 * (3/5)</gadget>
<output>3</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>