\(\frac{4}{12}=\frac{4:4}{12:4}=\frac{1}{3}\)

\(\frac{24}{30}=\frac{24:6}{30:6}=\frac{4}{5}\)

\(\frac{25}{100}=\frac{25:25}{100:25}=\frac{1}{4}\)

\(\frac{60}{80}=\frac{60:20}{80:20}=\frac{3}{4}\)

\(\frac{9}{18}=\frac{9:9}{18:9}=\frac{1}{2}\)

\(\frac{60}{36}=\frac{60:12}{36:12}=\frac{5}{3}\)

\(\frac{72}{54}=\frac{72:18}{54:18}=\frac{4}{3}\)

\(\frac{35}{210}=\frac{35:35}{210:35}=\frac{1}{6}\)

4/12=1/3

24/30=4/5

25/100=1/4

60/80=3/4

9/18=1/2

60/36=5/3

72/54=4/3

35/210=1/6

4/12 =1/3

24/30 =4/5

25/100 =1/4

60/80=..\(\frac{3}{4}\)...

9/8=.\(\frac{9}{8}\)..

60/36=.\(\frac{5}{3}\)..

72/54=..\(\frac{4}{3}\).

35/210=.\(\frac{1}{6}\)..

hok tốt !

\(\frac{60}{80}=\frac{3}{4}\)

\(\frac{9}{8}=\frac{9}{8}\)

\(\frac{60}{36}=\frac{5}{3}\)

\(\frac{72}{54}=\frac{4}{3}\)

\(\frac{35}{210}=\frac{1}{6}\)

\(\frac{60}{80}=\frac{3}{4}\)

\(\frac{9}{8}=\frac{9}{8}\)( vì đây là phân số tối giản )

\(\frac{60}{36}=\frac{5}{3}\)

\(\frac{72}{54}=\frac{4}{3}\)

\(\frac{35}{210}=\frac{1}{6}\)

b: \(=\dfrac{3}{7}\cdot\dfrac{5}{7}\cdot\dfrac{6}{7}=\dfrac{90}{343}\)

c: \(=\dfrac{4}{9}\cdot\dfrac{5}{9}\cdot\dfrac{3}{7}=\dfrac{20}{189}\)

d: \(=\dfrac{1}{3}\cdot\dfrac{5}{12}\cdot\dfrac{5}{12}=\dfrac{25}{432}\)

d

\(a,\dfrac{52}{32}=\dfrac{13}{8}\\ \dfrac{55}{65}=\dfrac{11}{13}\\ MSC:104\\ =>\dfrac{13}{8}=\dfrac{13.13}{8.13}=\dfrac{169}{104}\\ \dfrac{11}{13}=\dfrac{11.8}{13.8}=\dfrac{88}{104}\)

\(b,\dfrac{72}{64}=\dfrac{9}{8}\\ \dfrac{54}{81}=\dfrac{2}{3}\\ MSC:24\\ \dfrac{9}{8}=\dfrac{9.3}{8.3}=\dfrac{27}{24}\\ \dfrac{2}{3}=\dfrac{2.8}{3.8}=\dfrac{16}{24}\\ c,\dfrac{24}{36}=\dfrac{2}{3}\\ \dfrac{12}{30}=\dfrac{2}{5}\\ MSC:15\\ \dfrac{2}{3}=\dfrac{2.5}{3.5}=\dfrac{10}{15}\\ \dfrac{2}{5}=\dfrac{2.3}{3.5}=\dfrac{6}{15}\)

\(d,\dfrac{80}{40}=2\\ \dfrac{45}{63}=\dfrac{5}{7}\\ MSC:7\\ 2=\dfrac{14}{7}\\ e,\dfrac{150}{50}=3\\ \dfrac{100}{200}=\dfrac{1}{2}\\ MSC:2\\ 3=\dfrac{6}{2}\\ f,\dfrac{54}{81}=\dfrac{2}{3}\\ \dfrac{69}{93}=\dfrac{23}{21}\\ MSC:21\\ \dfrac{2}{3}=\dfrac{2.7}{3.7}=\dfrac{14}{21}\)

\(a.\dfrac{52}{32}\text{=}\dfrac{13}{8};\dfrac{55}{65}\text{=}\dfrac{11}{13}\)

\(\dfrac{13.13}{13.8}\text{=}\dfrac{169}{104};\dfrac{11.8}{13.8}\text{=}\dfrac{88}{104}\)

\(c.\dfrac{24}{36}\text{=}\dfrac{2}{3};\dfrac{12}{30}\text{=}\dfrac{2}{5}\)

\(\dfrac{2.5}{3.5}\text{=}\dfrac{10}{15};\dfrac{2.3}{5.3}\text{=}\dfrac{6}{15}\)

\(b.\dfrac{72}{64}\text{=}\dfrac{9.3}{8.3}\text{=}\dfrac{27}{24};\dfrac{54}{81}\text{=}\dfrac{2.8}{3.8}\text{=}\dfrac{16}{24}\)

\(d.\dfrac{80}{40}\text{=}\dfrac{2.63}{63}\text{=}\dfrac{126}{63};\dfrac{45}{63}\)

\(e.\dfrac{150}{50}\text{=}\dfrac{3.2}{2}\text{=}\dfrac{6}{2};\dfrac{100}{200}\text{=}\dfrac{1}{2}\)

\(f.\dfrac{54}{81}\text{=}\dfrac{2.31}{3.31}\text{=}\dfrac{62}{93};\dfrac{69}{93}\)

a) Vì 80  16 và 176  16 nên ƯCLN (16, 80, 176) = 16;

b) Ta có 18 = 2 . 3² ; 30 = 2 . 3 . 5; 77 = 7 . 11. Do đó 18 , 30, 77 không có ước chung nào khác 1. Vậy ƯCLN (18, 30, 77) = 1.

các câu làm tương tự ak

tích nha

Chọn D.

Sắp sếp lại số liệu trên theo thứ tự tăng dần của điểm số

Vì n = 25 là số lẻ nên số trung vị là số đứng ở vị trí thứ 

Do đó số trung vị là: M_e= 75.