There are two types of glass in classroom windows. The area of each type A glass is (3/8) m**2, and the area of each type B glass is (1/10) m**2 less than that of type A. How many square meters are there in total for each of the two types of glass?
教室的窗户有两种型号的玻璃，甲种玻璃每块的面积是(3/8)m**2，乙种玻璃每块面积比甲种少(1/10)m**2．现有两种玻璃各一块，共有多少平方米？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(3/8) - (1/10)</gadget>
<output>11/40 = around 0.275</output>

<gadget id="calculator">(3/8) + (11/40)</gadget>
<output>13/20 = around 0.65</output>

<result>13/20 = around 0.65</result>