\(a) \frac{1}{4};\frac{3}{7};\frac{101}{131}\)

\(15\div\frac{15}{45}\div15=\frac{1}{3}\)
 

\(\frac{72}{90}=72\div\frac{18}{90}\div18=\frac{4}{5}\)
 

\(50\div\frac{10}{120}\div10=\frac{5}{12}\)

1000000000000% đúng nha

a: 44/77=4/7

b: 72/90=4/5

a,\(\dfrac{44}{77}=\dfrac{44:11}{77:11}=\dfrac{4}{7}\)

b\(\dfrac{72}{90}=\dfrac{72:9}{90:9}=\dfrac{8}{9}\)

a)

`6/9=2/3`

`6/24=1/4`

`48/96=1/2`

`42/98=3/7`

b)

`24/36=2/3`

`18/30=3/5`

`15/120=1/8`

`80/240=1/3`

a)\(\dfrac{6}{9}=\dfrac{6:3}{9:3}=\dfrac{2}{3}\)
\(\dfrac{6}{24}=\dfrac{6:6}{24:6}=\dfrac{1}{4}\)
\(\dfrac{48}{96}=\dfrac{48:48}{96:48}=\dfrac{1}{2}\)
\(\dfrac{42}{98}=\dfrac{42:14}{98:14}=\dfrac{3}{7}\)
b)\(\dfrac{24}{36}=\dfrac{24:12}{36:12}=\dfrac{2}{3}\)
\(\dfrac{18}{30}=\dfrac{18:6}{30:6}=\dfrac{3}{5}\)
\(\dfrac{15}{120}=\dfrac{15:15}{120:15}=\dfrac{1}{8}\)
\(\dfrac{80}{240}=\dfrac{80:80}{240:80}=\dfrac{1}{3}\)

\(\dfrac{14}{28}=\dfrac{14:14}{28:14}=\dfrac{1}{2}\)

\(\dfrac{33}{99}=\dfrac{33:33}{99:33}=\dfrac{1}{3}\)

\(\dfrac{12}{80}=\dfrac{12:4}{80:4}=\dfrac{3}{20}\)

\(\dfrac{50}{150}=\dfrac{50:50}{150:50}=\dfrac{1}{3}\)

\(\dfrac{45}{9}=\dfrac{45:9}{9:9}=5\)

\(\dfrac{81}{72}=\dfrac{81:9}{72:9}=\dfrac{9}{8}\)

\(\dfrac{34}{68}=\dfrac{34:34}{68:34}=\dfrac{1}{2}\)

\(\dfrac{14}{28}=\dfrac{1}{2};\dfrac{33}{99}=\dfrac{11}{33};\dfrac{12}{80}=\dfrac{3}{20};\dfrac{50}{150}=\dfrac{1}{3};\dfrac{45}{9}=5;\dfrac{81}{72}=\dfrac{9}{8};\dfrac{34}{68}=\dfrac{1}{2}\)

5/4

5/4

=1/3

1/3

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

\(\frac{18}{48}=\frac{18:6}{48:6}=\frac{3}{8}\)

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

\(\frac{60}{120}=\frac{60:60}{120:60}=\frac{1}{2}\)

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

\(\frac{18}{48}=\frac{18\div6}{48\div6}=\frac{3}{8}\)

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

\(\frac{60}{120}=\frac{60\div60}{120\div60}=\frac{1}{2}\)

\(\dfrac{50}{30}=\dfrac{5}{3};\dfrac{96}{44}=\dfrac{24}{11};\dfrac{120}{60}=2\)

giúp mình nhé! Sao lúc nào mình cần câu trả lời thì chờ mãi ko thấy ai trả lời thế?