Grandpa's family has a vegetable field, and (3/8) of this field is used for growing cabbage, and (4/8) is used for growing celery. How much did you spend in total? If the remaining land is planted with eggplants, how much of the land is used for planting eggplants?
爷爷家有一块菜地，种白菜用去了这块地的(3/8)，种芹菜用去了(4/8)．一共用去了几分之几？如果剩下的地种茄子，种茄子用去了这块地的几分之几？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">1 - (7/8)</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>