There is a flour mill that can grind (7/5) tons of flour in (4/5) hours. According to this calculation, how many tons of flour can be ground in (2/3) hours.
有一台磨面机，(4/5)小时可以磨面粉(7/5)吨，照这样计算，(2/3)小时可以磨面粉多少吨．
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(7/5) / (4/5)</gadget>
<output>7/4 = around 1.75</output>

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

<gadget id="calculator">(7/4) * (2/3)</gadget>
<output>7/6 = around 1.166667</output>

<result>7/6 = around 1.166667</result>