The young pioneers of our school donated to the primary school in the disaster area. The fourth grade donated 128 yuan, which is 1/5 less than the fifth grade. The fifth grade donation is exactly 40% of the total donation of the whole school. How much is the whole school’s donation?
我校小学少先队员捐款给灾区小学，四年级捐了128元，比五年级少捐(1/5)，五年级捐款正好是全校捐款总数的40%，全校捐款多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">128 / (4/5) / (2/5)</gadget>
<output>400</output>

<result>400</result>