There is a ratio of 4:5, if the front and rear terms of this ratio are enlarged by 10 times at the same time, what is the ratio.
有一个比是4：5，如果这个比的前后项同时扩大10倍，比值是多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>