The area of a triangle is (4/5) square meters, its base is (8/15) meters, how many meters is its height?
一个三角形的面积是(4/5)平方米，它的底是(8/15)米，高是多少米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">2 / (8/15)</gadget>
<output>15/4 = around 3.75</output>

<gadget id="calculator">(4/5) * (15/4)</gadget>
<output>3</output>

<result>3</result>