In the stationery store, it is known that 3 ballpoint pens are 0.5 yuan more than 1 fountain pen, and each pen is 3.4 yuan, so how much is each ballpoint pen?
文具店里，已知3支圆珠笔比1支钢笔多0.5元，每支钢笔3.4元，那么每支圆珠笔多少元？
<gadget id="calculator">3.4 + 0.5</gadget>
<output>3.9</output>

<gadget id="calculator">3.9 / 3</gadget>
<output>1.3</output>

<result>1.3</result>