The number of sixth graders in Hongxing Primary School is fifth grade (4/5), and the number of fifth graders is fourth grade (8/9). There are 180 people in the fourth grade, how many people are in the sixth grade?
红星小学六年级的人数是五年级的(4/5)，五年人数是四年级的(8/9)．四年级有180人，六年级有多少人？
<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">180 * (8/9) * (4/5)</gadget>
<output>128</output>

<result>128</result>