Under normal circumstances, the mass of water of equal volume is more than the mass of ice (1/9). The mass of water is 50 kg. If there is a block of ice whose volume is equal to the volume of the water, what is the mass of this block of ice?
在通常情况下，体积相等的水的质量比冰的质量多(1/9)．现有质量50千克的水，如果有一块冰的体积与这些水的体积相等，这块冰的质量是多少千克？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">50 / (10/9)</gadget>
<output>45</output>

<result>45</result>