The fruit shop shipped 20 baskets of apples, and the pears shipped were apples (1/4) and bananas (5/9), how many baskets of bananas were shipped?
水果店运来20筐苹果，运来的梨是苹果的(1/4)，又是香蕉的(5/9)，运来香蕉多少筐？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">(1/4) / (5/9)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">20 * (9/20)</gadget>
<output>9</output>

<result>9</result>