The weight ratio of two bags of rice, A and B, is 4:1. 130 kg of rice is taken from bag A and put into bag B. At this time, the weight ratio of the two bags of rice is 7:5. What is the sum of the weights of two bags of rice in kilograms?
甲、乙两袋大米的重量比是4：1，从甲袋中取出130千克大米放入乙袋．这时两袋大米的重量比是7：5．求两袋大米的重量和是多少千克？
<gadget id="calculator">7 + 5</gadget>
<output>12</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(5/12) - (1/5)</gadget>
<output>13/60 = around 0.216667</output>

<gadget id="calculator">130 / (13/60)</gadget>
<output>600</output>

<result>600</result>