The living room of Wang Ping’s house is 6 meters long and 4.8 meters wide. It is planned to lay square bricks on the floor. There are the following types of square bricks in the shop: 1 side 30 cm long; 2 sides 45 cm long; 3 sides 60 cm long bricks; please help him choose a kind of bricks, and at least how many pieces of such bricks are needed?
王平家客厅长6米，宽4.8米，计划在地面铺方砖，商店里方砖有以下几种：1边长30厘米的方砖；2边长45厘米的方砖；3边长60厘米的方砖；请你帮他选一种方砖，并算算至少需要多少块这样的方砖？
<gadget id="calculator">100 / 60</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">6 * (5/3) * 4.8 * (5/3)</gadget>
<output>80</output>

<result>80</result>