In the 2008 Beijing Olympic Games, a women's volleyball player had 20 spikes and 3 mistakes in a certain game. What is the success rate of her spikes in this game?
2008年北京奥运会上，一位女排运动员在某场比赛中共扣球20次，3次失误，这场比赛中她扣球的成功率是多少．
<gadget id="calculator">20 - 3</gadget>
<output>17</output>

<gadget id="calculator">17 / 20</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(17/20) * 1</gadget>
<output>17/20 = around 0.85</output>

<result>17/20 = around 0.85</result>