On the first day, Zhongbai Supermarket shipped 350 kg of cucumbers and tomatoes, of which the weight of the cucumbers was the total of these two types (3/7). On the second day, only some tomatoes were shipped, and the weight of the cucumbers was the total (3/7) 8), how many kilograms of tomatoes will be shipped the next day?
中百超市第一天运来黄瓜和西红柿350千克，其中黄瓜的重量是这两种总的(3/7)，第二天只运来一些西红柿，这时黄瓜的重量是总的(3/8)，第二天运来西红柿多少千克？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(3/7) / (3/8)</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">350 * (8/7)</gadget>
<output>400</output>

<gadget id="calculator">400 - 350</gadget>
<output>50</output>

<result>50</result>