Xiao Ming and Xiao Hong went to the store to buy the composition books, and they paid the same amount. They bought 10 copies in total, and Xiao Hong took 2 more copies than Xiao Ming, so Xiao Hong returned Xiao Ming (3/5) yuan. How much did Xiao Ming and Xiao Hong spend in total?
小明和小红到商店买作文本，所付的钱一样多，他俩共买了10本，小红比小明多拿了2本，因此小红还给小明(3/5)元钱．小明和小红共花了多少钱？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">(3/5) / 1</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * 10</gadget>
<output>6</output>

<result>6</result>