(3/4):x=(1/10):3.
(3/4)：x=(1/10)：3．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * 3</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(9/4) / (1/10)</gadget>
<output>45/2 = around 22.5</output>

<result>45/2 = around 22.5</result>