Manual transplanting can only transplant 0.042 hectares per person per day, and rice transplanters can transplant 1.47 hectares per day. If the rice transplanter transplants 7.5 hours a day and the manual transplants 6 hours a day, how many times can the number of hectares transplanted by the rice transplanter per hour be that of manual labor?
人工插秧每人每天只能插0.042公顷，插秧机每天插秧1.47公顷，如果插秧机一天插秧7.5小时，人工一天插秧6小时，那么插秧机每小时插秧的公顷数是人工的几倍？
<gadget id="calculator">1.47 / 7.5</gadget>
<output>0.196</output>

<gadget id="calculator">0.042 / 6</gadget>
<output>0.007</output>

<gadget id="calculator">0.196 / 0.007</gadget>
<output>28</output>

<result>28</result>