One angle is 72°, the ratio of this angle to the other angle is 2:3, what is the sum of these two angles?
一个角为72°，这个角与另一个角的比是2﹕3，这两个角的和是多少．
<gadget id="calculator">72 / 2</gadget>
<output>36</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">36 * 5</gadget>
<output>180</output>

<result>180</result>