A stone crusher (1/4) hours crushes (1/8) cubic meters of stones, what is the formula for how many hours it takes to crush 1 cubic meter of stones
一台石块粉碎机(1/4)小时粉碎石块(1/8)立方米，求粉碎1立方米石块要多少小时算式是多少
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/4) / (1/8)</gadget>
<output>2</output>

<result>2</result>