If you invested 120,000 yuan last year and 90,000 yuan this year, how much will you save this year compared to last year?
去年投资12万元，今年投资9万元，今年比去年节约投资了几分之几？
<gadget id="calculator">12 - 9</gadget>
<output>3</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>