In a right triangle, the measure of the smallest angle is (1/3) of the largest angle. What is the smallest angle?
在一个直角三角形中，最小角的度数是最大角的(1/3)，最小角是多少度．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">90 * (1/3)</gadget>
<output>30</output>

<result>30</result>