What is the sum of the product of 2 (4/5) and (2/5)?
2个(4/5)的积与(2/5)相加，和是多少？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * (4/5)</gadget>
<output>16/25 = around 0.64</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(16/25) + (2/5)</gadget>
<output>26/25 = around 1.04</output>

<result>26/25 = around 1.04</result>