Off formula calculation: (3/4)*((2/3)/((3/5)*(10/9))).
脱式计算：(3/4)*((2/3)/((3/5)*(10/9)))．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">10 / 9</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">(3/5) * (10/9)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / (2/3)</gadget>
<output>1</output>

<gadget id="calculator">(3/4) * 1</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>