The length of a cuboid is (7/8) meters, the width is the length (4/5), and the height is the width (2/7). What is the front area of the cuboid?
一个长方体长是(7/8)米，宽是长的(4/5)，高是宽的(2/7)，这个长方体的前面面积是多少？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(7/8) * (4/5) * (2/7) * (7/8)</gadget>
<output>7/40 = around 0.175</output>

<result>7/40 = around 0.175</result>