Xiaoqing has a cuboid goldfish tank. Measured from the inside, it is (4/5) meters long, (3/4) meters wide, and (1/2) meters high. The water depth in the fish tank is (3/10) meters. How many liters of water are there in the fish tank?
小青有一个长方体金鱼缸，从里面量，长(4/5)米，宽(3/4)米，高(1/2)米．鱼缸里面水深(3/10)米．鱼缸里有水多少升？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(4/5) * (3/4) * (3/10) * 1_000</gadget>
<output>180</output>

<result>180</result>