In the school sports meeting, students used (2/5) hours for gymnastics performance, 12 minutes for martial arts performance, and (7/12) hours for teachers' art performance. How much time did the teachers and students spend on performing these three programs?
学校运动会上，学生体操表演用了(2/5)小时，武术表演用了12分钟，教师文艺表演用了(7/12)小时，那么师生表演这三个节目共用了多少时间？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">(2/5) + (1/5) + (7/12)</gadget>
<output>71/60 = around 1.183333</output>

<result>71/60 = around 1.183333</result>