There are 160 students in the sixth grade participating in the mathematics competition, of which the number of girls is boys (7/9). How many boys participate in the math competition?
六年级有160人参加数学竞赛，其中女生人数是男生的(7/9)．参加数学竞赛的男生有多少人？
<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 + (7/9)</gadget>
<output>16/9 = around 1.777778</output>

<gadget id="calculator">160 / (16/9)</gadget>
<output>90</output>

<result>90</result>