Peanut candy is 6 yuan per kilogram, and milk candy is 8 yuan per kilogram. Now buy these two kinds of sugar with a mass ratio of 2:1, a total of 15 kilograms. How much is the shared cost?
花生糖每千克6元，奶糖每千克8元，现按2：1的质量比买这两种糖共15千克，共用多少元？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">15 * (2/3) * 6</gadget>
<output>60</output>

<gadget id="calculator">15 * (2/3)</gadget>
<output>10</output>

<gadget id="calculator">15 - 10</gadget>
<output>5</output>

<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">60 + 40</gadget>
<output>100</output>

<result>100</result>