If a number is divided by the reciprocal of (2/3), the quotient is (4/7). What is the number?
一个数除以(2/3)的倒数，商是(4/7)，这个数是多少．
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / (2/3)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(4/7) * (3/2)</gadget>
<output>6/7 = around 0.857143</output>

<result>6/7 = around 0.857143</result>