A volleyball player has 20 spikes and 3 turnovers. What is the success rate of this athlete's spiking
一位排球运动员在比赛时扣球20次，3次失误．这位运动员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>

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