If a certain milk powder contains 25% fat, how many grams of fat are in 350 grams of milk powder?
如果某种奶粉含脂肪25%，那么350克奶粉中含脂肪是多少克．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">350 * (1/4)</gadget>
<output>175/2 = around 87.5</output>

<result>175/2 = around 87.5</result>