There are 150 students in the sixth grade of the school. The ratio of boys to girls is 8:7. How many boys are there?
学校六年级有150名生，男生与女生人数的比是8：7，男生有多少人？
<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">150 * (8/15)</gadget>
<output>80</output>

<result>80</result>