Use some ropes to make skipping ropes. If each skipping rope is 1.5 meters long, these ropes can make 60 skipping ropes. If each skipping rope is 1.2 meters long, how many can you make? (Solve with ratio)
用一些绳子做跳绳，如果每根跳绳长1.5米，这些绳子可以做60根跳绳，如果每根跳绳长1.2米，可以做几根？(用比例解)
<gadget id="calculator">1.5 * 60</gadget>
<output>90</output>

<gadget id="calculator">90 / 1.2</gadget>
<output>75</output>

<result>75</result>