In a 15-question oral calculation competition, Xiao Ming got it right (4/5), Xiao Fang got 2 more questions wrong than Xiao Ming, how much did Xiao Fang get right.
在一次15题口算比赛中，小明做对了(4/5)，小芳比小明多错2题，小芳做对了多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 - (4/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">15 * (1/5)</gadget>
<output>3</output>

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

<gadget id="calculator">15 - 5</gadget>
<output>10</output>

<result>10</result>