The fifth grade students in Zhongshan Primary School have 6 Chinese lessons a week, accounting for 1/5 of the total number of lessons, and music lessons account for 1/15 of the total number of lessons. How many music lessons do they have a week?
中山小学五年级学生一周要上6节语文课，占总课数的(1/5)，音乐课占总课数的(1/15)他们一周要上几节音乐课？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">6 / (1/5)</gadget>
<output>30</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">30 * (1/15)</gadget>
<output>2</output>

<result>2</result>