There are two piles of coal, A and B, and the (2/3) of A pile of coal is exactly the (3/5) of B pile of coal. It is known that the weight of B pile of coal is 150 tons, how much is the weight of A pile of coal?
甲、乙两堆煤，甲堆煤的(2/3)正好是乙堆煤的(3/5)，已知乙堆煤重150吨，甲堆煤重多少吨？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) / (2/3)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">150 * (9/10)</gadget>
<output>135</output>

<result>135</result>