There are 45 students in the first class of the fifth grade in a certain school, the number of students in the second class is the same as that of the first class (8/9), and the number of students in the third class is 4 more than that of the second class (4/5). How many students are there in class three?
某校五年级一班有学生45人，二班的学生人数是一班的(8/9)，三班人数比二班(4/5)还多4人．三班有学生多少人？
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">45 * (8/9) * (4/5)</gadget>
<output>32</output>

<gadget id="calculator">32 + 4</gadget>
<output>36</output>

<result>36</result>