The supermarket shipped 45 red bicycles and 15 yellow bicycles. Of the (2/3) of all bicycles that have been sold, how many have been sold?
超市运来45辆红色自行车，15辆黄色自行车．已经售出全部自行车的(2/3)，售出了多少辆？
<gadget id="calculator">45 + 15</gadget>
<output>60</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>