Solve the equation: (2-(3/4))x=(4/5).
解方程：(2-(3/4))x=(4/5)．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 - (3/4)</gadget>
<output>5/4 = around 1.25</output>

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

<result>16/25 = around 0.64</result>