A pile of coal was originally planned to burn 3 tons per day, and it can be burned for 96 days. After the electric stove is improved, the actual burning time is exactly 120 days. How many tons can be saved per day compared with the plan?
一堆煤原计划每天烧3吨，可烧96天，经改进电炉灶，实际烧120天正好，实际每天比计划每天节省多少吨？
<gadget id="calculator">3 / 120</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">96 * (1/40)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">3 - (12/5)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>