There are 270 students in the sixth grade of Sunshine Primary School, among which the number of girls is boys (4/5). How many boys are there?
阳光小学六年级有270人，其中女生人数是男生的(4/5)．男生有多少人？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 + (4/5)</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">270 / (9/5)</gadget>
<output>150</output>

<result>150</result>