There are 54 pieces of toffee in a bag, and Xiaohong eats these toffee in a week (5/9). How many grains are left uneaten?
一袋奶糖共有54粒，小红一星期吃掉这些奶糖的(5/9)．还剩多少粒没有吃？
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">54 * (5/9)</gadget>
<output>30</output>

<gadget id="calculator">54 - 30</gadget>
<output>24</output>

<result>24</result>