The area of a rectangle is (7/15)m**2, the length is (7/9), and how many meters is the width?
一个长方形的面积是(7/15)m**2，长是(7/9)，宽是多少米？
<gadget id="calculator">7 / 15</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(7/15) / (7/9)</gadget>
<output>3/5 = around 0.6</output>

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