There are 52 yellow flowers, and the number of yellow flowers is 80% of that of safflowers. How many safflowers are there?
黄花有52朵，黄花的朵数是红花的80%，红花有多少朵．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">52 / (4/5)</gadget>
<output>65</output>

<result>65</result>