a:\(\dfrac{12}{13}\)

b:\(\dfrac{12}{13}\)

c:\(\dfrac{121}{131}\)

Câu a: \(\dfrac{12}{13}\)

Câu b: \(\dfrac{12}{13}\)

Câu c: \(\dfrac{121}{121}\)

a) \(\frac{6}{9}=\frac{6:3}{9:3}=\frac{2}{3}\)

b)\(\frac{10}{48}=\frac{10:2}{48:2}=\frac{5}{24}\)

c)\(\frac{72}{84}=\frac{72:12}{84:12}=\frac{6}{7}\)

d)\(\frac{1212}{3939}=\frac{1212:303}{3939:303}=\frac{4}{13}\)

#H

Rút gọn phân số:

\(\frac{6}{9}=\frac{6\div3}{9\div3}=\frac{2}{3}\)

\(\frac{10}{48}=\frac{10\div2}{48\div2}=\frac{5}{24}\)

\(\frac{72}{84}=\frac{72\div12}{84\div12}=\frac{6}{7}\)

\(\frac{1212}{3939}=\frac{1212\div303}{3939\div303}=\frac{4}{13}\)

121/143=11/13

1212/1414=6/7

123123/456456=123/456=41/152

\(\dfrac{121}{143}=\dfrac{11}{13}\) ;  \(\dfrac{1212}{1414}=\dfrac{6}{7}\) ;  \(\dfrac{123}{456}=\dfrac{41}{152}\)

\(\dfrac{60}{75}\)=\(\dfrac{4}{5}\)

\(\dfrac{48}{72}\)=\(\dfrac{2}{3}\)

\(\dfrac{65}{9}\)=\(\dfrac{65}{9}\)

\(\dfrac{121212}{121212}\)=1

121212/484848=

=12/48

1/4

1/4 đó bạn nhớ k nha

33/55=3/5

1212/1313=12/13

20/28=5/7

6/21=2/7

a, \(\frac{33}{55}=\frac{3}{5}\)

b, \(\frac{1212}{1313}=\frac{12}{13}\)

c, \(\frac{20}{28}=\frac{5}{7}\)

d, \(\frac{6}{21}=\frac{2}{7}\)

4/7

\(\dfrac{4}{7}\)

\(=\dfrac{1}{3}\)

\(\dfrac{121212}{363636}=\dfrac{121212\div121212}{363636\div121212}=\dfrac{1}{3}\)

\(\frac{1212}{3030}=\frac{2}{5}\)

\(\frac{32032}{48048}=\frac{2}{3}\)

\(\frac{456456}{234234}=\frac{76}{39}\)

\(\frac{1339}{1442}=\frac{13}{14}\)

#Châu's ngốc