In the process of recording the "Classroom in the Air" program, a courseware needs to be produced. It takes 8 hours for Mr. Ma to make it alone, and 10 hours for Mr. Li's unit production. After Mrs. Ma made it for 3 hours, Mrs. Li will complete the rest. How many hours will it take to complete?
在录制"空中课堂"节目过程中，需要制作一个课件，马老师单独制作要8小时，李老师单元制作要10小时，马老师制作了3小时后，接下来由李老师完成剩余部分，还需要多少小时才能完成？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 3</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(5/8) / (1/10)</gadget>
<output>25/4 = around 6.25</output>

<result>25/4 = around 6.25</result>