Xiaoming's family eats 3/4 kilograms of rice every day. According to this calculation, how many kilograms of rice did his family eat in September?
小明家每天吃大米(3/4)千克，照这样计算，他家九月份共吃了多少千克大米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) * 30</gadget>
<output>45/2 = around 22.5</output>

<result>45/2 = around 22.5</result>