The water content in watermelon accounts for about (9/10). If there are (5/8) tons of watermelon, how many kilograms of water can be extracted from it?
西瓜中水的含量约占(9/10)．如果有西瓜(5/8)吨，能从中提取多少千克的水？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(5/8) * (9/10) * 1_000</gadget>
<output>1_125/2 = around 562.5</output>

<result>1_125/2 = around 562.5</result>