150 fruit trees were planted in the orchard, and 147 survived. What is the survival rate?
果园里种了150棵果树，活了147棵，成活率是多少．
<gadget id="calculator">147 / 150</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>