The little squirrel picked (16/9)kg pine cones today and ate (4/9)kg every day. How many days can a squirrel eat the pine nuts picked today?
小小松鼠今天采了(16/9)kg松果，每天吃(4/9)kg．松鼠今天采的松果可以吃几天？
<gadget id="calculator">16 / 9</gadget>
<output>16/9 = around 1.777778</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">(16/9) / (4/9)</gadget>
<output>4</output>

<result>4</result>