(4/7)*(3/5)+(3/7)/(5/3).
(4/7)*(3/5)+(3/7)/(5/3)．
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

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

<gadget id="calculator">(4/7) * (3/5)</gadget>
<output>12/35 = around 0.342857</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(3/7) / (5/3)</gadget>
<output>9/35 = around 0.257143</output>

<gadget id="calculator">(12/35) + (9/35)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>