For a manuscript, Xiao Ming can finish typing in 20 minutes alone; Xiaohong can finish typing in 15 minutes alone. Xiao Ming types 60 words per minute, how many words does Xiao Hong type per minute?
一篇稿子，小明单独打20分钟能够打完；小红单独打15分钟能够打完．小明每分钟打字60个，小红每分钟打字多少个？
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">60 * (4/3)</gadget>
<output>80</output>

<result>80</result>