A pile of 180 tons of coal was burned (2/3) in the first month, and (3/4) of the first month was burned in the second month. How many tons were burned in the second month?
一堆煤180吨，第一个月烧了它的(2/3)，第二个月烧的是第一个月的(3/4)．第二个月烧了多少吨？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">180 * (2/3) * (3/4)</gadget>
<output>90</output>

<result>90</result>