1 bag of rice weighs 50 kg, how many tons does 40 bags of this rice weigh?
1袋大米重50千克，40袋这样的大米重多少吨．
<gadget id="calculator">40 / 1_000</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">50 * (1/25)</gadget>
<output>2</output>

<result>2</result>