There are 10 girls in the calligraphy group of the school's extracurricular activity interest group, which is 5 fewer than the number of boys (5/6). How many boys are there in the calligraphy group? (solution by equation)
学校课外活动兴趣小组书法组有10名女生，比男生人数的(5/6)少5名．书法组有男生多少名？(用方程解)
<gadget id="calculator">5 + 10</gadget>
<output>15</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">15 / (5/6)</gadget>
<output>18</output>

<result>18</result>