After being shocked to learn of the disaster in southern my country, the teachers and students of our school actively donated money. In six years, the number of donations by girls in a certain class accounted for 40% of the whole class, less than 16 yuan, and the number of donations by boys was 3/5 of the number of donations by girls. How much does the disaster area donate?
惊悉我国南方遭遇灾害后，我校师生踊跃捐款，六年某班女生捐款数占全班的40%少16元，男生捐款数是女生捐款数的(3/5)，这个班一共为灾区捐款多少元？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (2/5) - (3/8)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">16 / (9/40)</gadget>
<output>640/9 = around 71.111111</output>

<result>640/9 = around 71.111111</result>