(-191910*9898+989898*1919)/(1/2+3.14)=?

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(-191910*9898+989898*1919)/(1/2+3.14)=?
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(-191910*9898+989898*1919)/(1/2+3.14)=?
(-191910*9898+989898*1919)/(1/2+3.14)=?

(-191910*9898+989898*1919)/(1/2+3.14)=?
(-191910*9898+989898*1919)/(1/2+3.14)
=(-(191900+10)*9898+989898*1919)/(0.5+3.14)
=(-1919*989800-98980+989898*1919)/3.64
=(1919*(989898-989800)-98980)/3.64
=(1919*98-98980)/3.64
=98*(1919-1010)/3.64
=98*9/3.64
=44100/182
=3150/13