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=31/32

\(\dfrac{124}{128}=\dfrac{31}{32}\)

-24/42=-4/7

-24/36=-2/3

-8/56=-1/7

29/-87=-1/3

51/-18=-17/3

18,34+(-18)x124=18,34+-2232

                        =2213,66

-36,17+9 x-52= -36,17+468

                    =431,83

     \(\frac{77}{176}=\frac{77:11}{176:11}=\frac{7}{16}\)                              ;                               \(\frac{232323}{474747}=\frac{232323:10101}{474747:10101}=\frac{23}{47}\)

       \(\frac{376376}{159159}=\frac{376376:1001}{159159:1001}=\frac{376}{159}\)                ;                    \(\frac{9\cdot8\cdot5}{24\cdot15}=\frac{9\cdot8\cdot5}{8\cdot3\cdot3\cdot5}=\frac{9\cdot8\cdot5}{8\cdot9\cdot5}=1\)

\(\frac{9.8.5}{24.15}\)

\(=\frac{9.8.5}{8.3.3.5}\)

\(=1\)

\(P=\frac{3^9.3^{20}.3^8}{3^{24}.2^6.343}\)

\(\Leftrightarrow P=\frac{3^{37}}{3^{24}.2^6.3^5}\)

\(\Leftrightarrow P=\frac{3^{37}}{3^{29}.2^6}\)

\(\Leftrightarrow P=\frac{3^8}{2^6}\)

\(\dfrac{-4}{35}\)

-4/35

lời giải nè:

= 3⁹⁺²⁰.2⁸/3²⁴.243.2⁶                                                                                                          

=3²⁹.2⁸/3²⁴.27.9.2⁶

=3²⁹.2⁸/3²⁴.3³3².2⁶        

=1.2²/1.1.1.1

=4

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