One bag of rice is used up (1/3), and then 1.5 kg is added. At this time, the rice in the bag is equivalent to the original (3/4). How many kilograms does this bag of rice originally have?
一袋米用去了(1/3)，再加入1.5千克，这时袋里的米相当于原来的(3/4)，这袋米原来有多少千克？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(3/4) - (2/3)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1.5 / (1/12)</gadget>
<output>18</output>

<result>18</result>