Hongxing Primary School carried out water conservation activities, and saved 28 tons of water in the first half of the year, which was the second half of the year (6/7). How many tons of water were saved in the second half of the year?
红星小学开展节约用水活动，上半年节约用水28吨，是下半年的(6/7)，下半年节约用水多少吨？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">28 / (6/7)</gadget>
<output>98/3 = around 32.666667</output>

<result>98/3 = around 32.666667</result>