In the rope skipping competition, Liu Hong jumped 200 times, Li Ming's number of jumps was Liu Hong's (3/4), Zhang Hua's number of jumps was Li Ming's (4/5), how many times did Zhang Hua jump?
跳绳比赛中，刘红跳了200下，李明跳的下数是刘红的(3/4)，张华跳的下数是李明的(4/5)，张华跳了多少下？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">200 * (3/4) * (4/5)</gadget>
<output>120</output>

<result>120</result>