Primary and secondary schools in Xincheng carried out waste paper recycling activities, and a total of 87.5 tons of waste paper were recycled. The recycling rate of recycled paper produced from waste paper is 80%. How many tons of recycled paper can these recycled waste paper produce?
新城市中小学校开展回收废纸活，共回收废纸87.5吨．用废纸生产再生纸的再生率为80%，这些回收的废纸能生立多少吨再生纸？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">87.5 * (4/5)</gadget>
<output>70</output>

<result>70</result>