What is the product of the difference between (3/2) and (1/2) multiplied by (5/9) and (3/7)?
(3/2)与(1/2)的差乘(5/9)与(3/7)的和，积是多少？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

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

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

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

<gadget id="calculator">(5/9) + (3/7)</gadget>
<output>62/63 = around 0.984127</output>

<gadget id="calculator">1 * (62/63)</gadget>
<output>62/63 = around 0.984127</output>

<result>62/63 = around 0.984127</result>