A bag of rice ate 1400 grams on the second day, which was more (2/5) than the first day. How many grams did you eat on the first day?
一袋大米第二天吃了1400克，比第一天多(2/5)，第一天吃了多少克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">1_400 / (7/5)</gadget>
<output>1_000</output>

<result>1_000</result>