Prepare a chocolate milk with a ratio of chocolate to milk of 2:7. There are 16g of chocolate, how much milk is needed?
调制一种巧克力与牛奶之比为2：7的巧克力牛奶，现有16g巧克力，需要多少牛奶？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">16 / (2/7)</gadget>
<output>56</output>

<result>56</result>