A bag of rice is used (1/3), and 8 kilograms are added. At this time, the rice in the bag just accounts for (4/5) of the original rice. How many kilograms does this bag of rice originally have?
一袋大米用去(1/3)，又加进8千克，这时袋里的大米恰好占原来大米的(4/5)，这袋大米原来有多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</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">(4/5) - (2/3)</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">8 / (2/15)</gadget>
<output>60</output>

<result>60</result>