Pioneer Primary School planted 150 trees last year, and 147 of them survived. What is the survival rate?
先锋小学去年植树150棵，种的树活了147棵，求成活率？
<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>