840 kg of cabbage is shipped from the market, the radish is cabbage (5/8), the tomato is radish (1/5), how many kilograms are the tomatoes?
菜场运来白菜840千克，运来萝卜是白菜的(5/8)，运来西红柿是萝卜的(1/5)，运来西红柿多少千克？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">840 * (5/8) * (1/5)</gadget>
<output>105</output>

<result>105</result>