A box of candies weighs 450 kilograms. After eating part of the box, the weight of the box is 150 grams. It is known that the weight of the box is 1/8 of the original candy weight. How much of this box of candies has been eaten?
一盒糖果连盒重450千克，吃去一部分后连盒重150克，已知盒子的重量是原有糖果重量的(1/8)，这盒糖果吃去了几分之几？
<gadget id="calculator">450 - 150</gadget>
<output>300</output>

<gadget id="calculator">1 + 8</gadget>
<output>9</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

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

<gadget id="calculator">300 / 400</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>