90/70 và 72/42 nhé em gửi nó bị lỗi

\(\frac{72}{54}=\frac{72:18}{54:18}=\frac{4}{3}\)            \(\frac{18}{54}=\frac{18:18}{54:18}=\frac{1}{3}\)

\(\frac{35}{210}=\frac{35:35}{210:35}=\frac{1}{6}\)      \(\frac{90}{72}=\frac{90:18}{72:18}=\frac{5}{4}\)

\(\frac{9}{36}=\frac{9:9}{36:9}=\frac{1}{4}\)          \(\frac{30}{48}=\frac{30:6}{48:6}=\frac{5}{8}\)

\(\frac{72}{42}=\frac{72:6}{42:6}=\frac{12}{7}\)

4/3,1/6,1/3,5/4,1/4,5/8,12/7

nhớ k cho mình nha

a: 54/18=3

b: 72/56=9/7

c: 23/69=1/3

d: 42/84=1/2

\(a,\dfrac{3}{9}=\dfrac{1}{3}\\ \dfrac{16 }{24}=\dfrac{2}{3}\\ b,\dfrac{17}{51}=\dfrac{1}{3}=\dfrac{5}{15}\\ \dfrac{18}{90}=\dfrac{1}{5}=\dfrac{3}{15}\\ c,\dfrac{5}{10}=\dfrac{1}{2}=\dfrac{3}{6}\\ \dfrac{15}{45}=\dfrac{1}{3}=\dfrac{2}{6}\\ d,\dfrac{42}{63}=\dfrac{2}{3}=\dfrac{6}{9}\\ \dfrac{64}{72}=\dfrac{8}{9}\)

12/7

\(\dfrac{12}{7}\)

12/7

12/7

\(\dfrac{72\times75}{125\times108}\) = \(\dfrac{36\times2\times25\times3}{25\times5\times36\times3}\) = \(\dfrac{2}{5}\)

\(\dfrac{50}{60}=\dfrac{5}{6}\)
\(\dfrac{33}{11}=3\)
\(\dfrac{16}{60}=\dfrac{4}{15}\)
\(\dfrac{42}{22}=\dfrac{21}{11}\)

chia là gì z

5/6

5/6