I drank 3/4 of it from a glass of drink, but I didn't drink much left.
一杯饮料喝了它的(3/4)，还剩多少没有喝．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>