A triangular steel plate has a base of (5/8) meters and a height of (4/5) meters. How many square meters is the area?
一块三角形钢板，底是(5/8)米，高是(4/5)米．面积是多少平方米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(5/8) * (4/5) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>