Dongdong's family raised a total of 135 seedlings on 15 square meters of land. According to this calculation, how much land is needed to raise 990 seedlings?
冬冬家在15平方米的土地上共育苗135棵，照这样计算，要育苗990棵，需要多大面积的土地？
<gadget id="calculator">135 / 15</gadget>
<output>9</output>

<gadget id="calculator">990 / 9</gadget>
<output>110</output>

<result>110</result>