In May last year, Mom, Uncle Li and Aunt Chen invested 50,000, 200,000, and 100,000 yuan respectively to establish a joint-stock company. After accounting in May this year, the company has a total of 63,000 yuan of profits available for distribution. When the three of them made a joint venture, they agreed: "The company's annual profits that can be used for distribution are distributed according to the proportion of personal investment." In this way, how much profit can the mother share?
去年5月，妈妈、李叔叔和陈阿姨，他们三人分别投资了5万、20万、10万元，合资办了一个股份公司．今年5月经过核算，公司可用于分配的赢利共有6.3万元．他们三个人合资时约定："公司每年可用于分配的赢利按个人出资的比例分配．"这样妈妈可以分得赢利多少万元？
<gadget id="calculator">5 + 20 + 10</gadget>
<output>35</output>

<gadget id="calculator">5 / 35</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">6.3 * (1/7)</gadget>
<output>0.9</output>

<result>0.9</result>