A. \(\frac{9}{{11}} ; \frac{1}{{25}} ; \frac{{ 1}}{{25}} ; \frac{{ - 1}}{{25}}\)
B. \(\frac{-9}{{11}} ; \frac{1}{{25}} ; \frac{{ - 1}}{{25}} ; \frac{{ - 1}}{{25}}\)
C. \(\frac{9}{{11}} ; \frac{1}{{25}} ; \frac{{ - 1}}{{25}} ; \frac{{ - 1}}{{25}}\)
D. \(\frac{9}{{-11}} ; \frac{1}{{25}} ; \frac{{ - 1}}{{25}} ; \frac{{ - 1}}{{25}}\)
C
\(\frac{{27}}{{33}} = \frac{{27:3}}{{33:3}} = \frac{9}{{11}}\) ;
\(\frac{{ - 25}}{{ - 625}} = \frac{{ - 25:\left( { - 25} \right)}}{{\left( { - 625:\left( { - 25} \right)} \right)}} = \frac{1}{{25}}\)
\(\frac{2}{{ - 50}} = \frac{{2:2}}{{ - 50:2}} = \frac{1}{{ - 25}} = \frac{{ - 1}}{{25}}\) ;
\(\frac{{ - 9}}{{225}} = \frac{{ - 9:\left( { - 9} \right)}}{{225:\left( { - 9} \right)}} = \frac{1}{{ - 25}} = \frac{{ - 1}}{{25}}\)
Chọn C
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