Calculation: (1-15/35)*(3/4).
计算：(1-15/35)*(3/4)．
<gadget id="calculator">15 / 35</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

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

<gadget id="calculator">(4/7) * (3/4)</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>