Each yogurt is topped with 8 banana slices.  One banana will yield 10 slices.  If Vivian needs to make 5 yogurts, how many bananas does she need to buy?
To make the yogurts, Vivian needs 5 x 8 = 
<gadget id="calculator">5*8</gadget>
<output>40</output>
40 banana slices.
She needs to buy 40 / 10 = 
<gadget id="calculator">40/10</gadget>
<output>4</output>
4 bananas.

<result>4</result>