The radius of the small circle is 3 cm, and the diameter of the large circle is 10 cm. By how much is the radius of the large circle greater than the radius of the small circle?
小圆的半径是3厘米，大圆的直径是10厘米，大圆的半径比小圆的半径多几分之几？
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>