Two engineering teams, A and B, repair a section of the subway. Team A repairs the full length (1/4), and Team B repairs the full length (3/8), a total of 1500m. How many meters is the total length of this subway? (solution by equation)
甲、乙两个工程队修一段地铁，甲队修了全长的(1/4)，乙队修了全长的(3/8)，一共修了1500m．这段地铁全长有多少m？(用方程解)
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(1/4) + (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1_500 / (5/8)</gadget>
<output>2_400</output>

<result>2_400</result>