Mom bought a bottle of 1.8 liters of drink to entertain Mingming's classmates. If you pour 0.45 liters per cup, how many cups can this bottle of drink hold?
妈妈买回一瓶1.8升装的饮料招待明明的同学．如果每杯倒0.45升，这瓶饮料能倒几杯？
<gadget id="calculator">1.8 / 0.45</gadget>
<output>4</output>

<result>4</result>