Xiaohong’s spring cocoon production this year is 450 kg, which is equivalent to (9/8) of last year’s spring cocoon production. How many kilograms was Xiaohong’s spring cocoon production last year?
小红家今年春茧产量为450千克，相当于去年春茧产量的(9/8)，小红家去年春茧的产量是多少千克？
<gadget id="calculator">9 / 8</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">450 / (9/8)</gadget>
<output>400</output>

<result>400</result>