Calculation: (121121121121/21212121)*(12121212/123123123123).
计算：(121121121121/21212121)*(12121212/123123123123)．
<gadget id="calculator">121_121_121_121 / 21_212_121</gadget>
<output>171_317_003/30_003 = around 5_709.995767</output>

<gadget id="calculator">12_121_212 / 123_123_123_123</gadget>
<output>40_004/406_346_941 = around 0.000098</output>

<gadget id="calculator">(171_317_003/30_003) * (40_004/406_346_941)</gadget>
<output>484/861 = around 0.562137</output>

<result>484/861 = around 0.562137</result>