Xiaohong (1/3) makes 15 steamed buns in an hour, how many steamed stuffed buns per hour on average.
小红(1/3)小时包了15个包子，平均每小时包多少个包子．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">15 / (1/3)</gadget>
<output>45</output>

<result>45</result>