A football is 61.2 yuan after a 10% discount. What is the original price?
一个足球打九折后是61.2元，原价是多少．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">61.2 / (9/10)</gadget>
<output>68</output>

<result>68</result>