1m**2 forest absorbs about 9g of carbon dioxide every day, which is equivalent to (1/10) that each person exhales every day. How many grams of carbon dioxide does each person exhale per day?
1m**2森林每天约吸收9g二氧化碳，相当于每人每天呼出的(1/10)．每人每天约呼出多少克二氧化碳？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">9 / (1/10)</gadget>
<output>90</output>

<result>90</result>