If the base of a triangle increases (1/4) and the height decreases (1/3), what is the original area?
一个三角形的底边增加(1/4)，高减少(1/3)，则面积是原来的多少
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>