There are 80 crayons, crayons are 60% more than watercolors, how many watercolors are there?
蜡笔画有80幅，蜡笔画比水彩画多60%，水彩画有多少幅？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 + (3/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">80 / (8/5)</gadget>
<output>50</output>

<result>50</result>