School breakfast is matched with bread, eggs and milk according to 2:1:4 to ensure the nutrition of students. Xiaomei ate about 350 grams of breakfast at school today. How many grams of bread did he eat this morning?
学校早餐按2：1：4搭配面包、鸡蛋和牛奶，以保证学生的营养．小美今天在学校吃了大约350克的早餐，他今天早上大约吃面包多少克？
<gadget id="calculator">2 + 1 + 4</gadget>
<output>7</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">350 * (2/7)</gadget>
<output>100</output>

<result>100</result>