Bottle A is filled with 450 grams of water, and (1/5) of it is poured out to fill (2/3) of bottle B. How much water can bottle B hold?
A瓶装满水是450克，倒出其中的(1/5)正好装至B瓶的(2/3)，B瓶能装多少水？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">(1/5) / (2/3)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">450 * (3/10)</gadget>
<output>135</output>

<result>135</result>