Xiao Ming and Xiao Liang want to buy the same book, Xiao Ming is short of 1 yuan and 5 cents, and Xiao Liang is short of 1 yuan and 3 cents. If you use their money to buy this book together, the money will be just right. What is the price of this book?
小明和小亮想买同一本书，小明缺1元5角，小亮缺1元3角．如果用他们的钱合买这本书，钱正好．这本书的价钱是多少？
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">(3/2) + (13/10)</gadget>
<output>14/5 = around 2.8</output>

<result>14/5 = around 2.8</result>