Class 3 of the fifth grade planted 138 trees on Arbor Day, 12 died, and 12 were planted again, all of them survived. What is the survival rate of this tree planting?
五年级3班在植树节种了138棵树，死了12棵，又种了12棵，全都活了，则这次植树的成活率是多少．
<gadget id="calculator">138 - 12</gadget>
<output>126</output>

<gadget id="calculator">126 + 12</gadget>
<output>138</output>

<gadget id="calculator">138 + 12</gadget>
<output>150</output>

<gadget id="calculator">138 / 150</gadget>
<output>23/25 = around 0.92</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(23/25) * 1</gadget>
<output>23/25 = around 0.92</output>

<result>23/25 = around 0.92</result>