The number of people in the painting group is less than that of the calligraphy group (1/4), and the number of people in the painting group is equal to the number of people in the calligraphy group.
绘画小组的人数比书法小组的人数少(1/4)，绘画小组人数是书法小组人数的多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>