a,999/2610=111/290

b,374/506=17/23

c,3600-75/8400-175=3/7

d,9^14.25^5.8^7/18^12.625^3.24^3=3/25

a, Ta có:999/2610=111/290

b, Ta có:374/506=17/2

c,Ta có:3600-75/8400-175=48.75-75/48.175-175=75.(48-1)/175.(48-1)=75/175=3/7

d, Ta có:(3^2)^14.(5^2)^5.(2^3)^7/(2.3^2)^12.(5^4)^3.(2^3.3)^3

=3^28.5^10.2^21/2^12.3^24.5^12.2^9.3^3

=3^28.5^10.2^21/2^21.3^27.5^12

=3/5^2=3/25

\(\frac{3600-75}{8400-175}=\frac{75.48-75}{175.48-175}=\frac{75.\left(48-1\right)}{175.\left(48-1\right)}\)

\(=\frac{75}{175}=\frac{25.3}{25.7}=\frac{3}{7}\)

Trừ r dùng máy tính

Trả lời :

\(\frac{3600-75}{8400-175}\)\(=\)\(\frac{3}{7}\)

Tk mình nha

Chỉ còn cách này nữa thôi

\(\frac{3600-75}{8400-175}=\frac{75.48-75}{175.48-175}\)

\(=\frac{75.\left(48-1\right)}{175.\left(48-1\right)}\)

\(=\frac{75}{175}=\frac{3}{7}\)

\(\frac{3600-75}{8400-175}=\frac{3525}{8225}\)

\(=\frac{3}{7}\)

Chúc bạn học tốt nha!

còn cách nào nhanh hơn không???

\(\frac{18.2+9}{27}=\frac{9.2.2+9}{3.9}=\frac{9\left(2.2+1\right)}{3.9}\)

\(\Rightarrow\frac{2.2+1}{3}=\frac{5}{3}\)

             \(\frac{27.2}{27}=1,00740741\)

136 phần 135

dấu mũ ngược đời v

\(\frac{9^{14}.25^5.8^7}{18^{12}.625^3.24^3}\)

=\(\frac{3.2^3}{5^2}\)=24/25

\(\frac{3600-75}{8400-175}=\frac{3525}{8225}=\frac{3}{7}\)

78/84=13/14

55/99=5/9

100/175=4/7

204/132=17/11

78/34 = 13/14

55/99 = 5/9

100/175 = 4/7

204/132 = 17/11

Chúc bạn học tốt !

78/84=13/14

55/99=5/9

100/175=4/7

204/132=17/11