There are 72 kilograms of oranges in the fruit shop. The oranges are bananas (8/9). How many kilograms are there bananas?
水果店有桔子72千克，桔子是香蕉的(8/9)，香蕉有多少千克？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">72 / (8/9)</gadget>
<output>81</output>

<result>81</result>