Aunt Li's house is renovating a new house and laying floor tiles for the bedroom. If you choose tiles with a length of 6 decimeters and a width of 4 decimeters, you need 80 tiles; then change to square tiles with a side length of 8 decimeters. Please help Aunt Li calculate how many square tiles are needed? (answer with ratio)
李阿姨家装修新房，给卧室铺地板砖．若选用长6分米，宽4分米的瓷砖需要80块；后改为边长8分米的方砖，请你帮李阿姨计算一下需要多少块方砖？(用比例解答)
<gadget id="calculator">6 * 4 * 80</gadget>
<output>1_920</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">1_920 / 64</gadget>
<output>30</output>

<result>30</result>