The reciprocal of a number is (5/9), what is (5/9) of this number.
一个数的倒数是(5/9)，这个数的(5/9)是多少．
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">9 / 5</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">(5/9) * (9/5)</gadget>
<output>1</output>

<result>1</result>