a)  36 − 48 = − 3 4

b)  − 15 50 = − 3 10

c)  − 18 − 81 = 2 9

d)  145 215 = 29 43

Theo thứ tự : 5/6 ; 2/3 ; 2/3 ; 3/2 ; 2/3 ; 3/8 ; 3/1(hay là 3)

\(\dfrac{10}{12}=\dfrac{5}{6}\)        \(\dfrac{8}{12}=\dfrac{2}{3}\)        \(\dfrac{10}{15}=\dfrac{2}{3}\)        \(\dfrac{27}{18}=\dfrac{3}{2}\)        \(\dfrac{24}{36}=\dfrac{4}{6}=\dfrac{2}{3}\)

\(\dfrac{18}{48}=\dfrac{3}{8}\)        \(\dfrac{42}{14}=\dfrac{6}{2}=\dfrac{3}{1}\)

10/12 = 5/6 

8/12 = 2/3 

10/15 = 2/3 

27/18 = 3/2 

18/48 = 3/8 

42/14 = 3 

18/54=1/3
25/75=1/3
48/30=8/5

1/3

1/3

8/5

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

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

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

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

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

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

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

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

em muốn nhanh thì lần sau em tách câu hỏi ra chứ đừng hỏi nhiều trong một câu em nhé

\(\dfrac{12}{48}\) = \(\dfrac{12:12}{48:12}=\)  \(\dfrac{1}{2}\)                            \(\dfrac{49}{140}\) = \(\dfrac{49:7}{140:7}\) = \(\dfrac{7}{20}\)

\(\dfrac{125}{1000}\) = \(\dfrac{125:125}{1000:125}\) = \(\dfrac{1}{8}\)               \(\dfrac{352}{253}\) = \(\dfrac{352:11}{253:11}\)= \(\dfrac{32}{23}\)

\(\dfrac{75}{300}=\) \(\dfrac{75:75}{300:75}\) = \(\dfrac{1}{4}\)                 \(\dfrac{561}{132}\) = \(\dfrac{561:33}{132:33}\) = \(\dfrac{17}{4}\)

Giúp mình nhanh với ạ

Rút gọn các phân số sau                      16/36 72 / 120 39 / 13 / 145 36/108 35/84

\(a.\dfrac{5}{10}=\dfrac{1}{2}=\dfrac{1\times3}{2\times3}=\dfrac{3}{6}\)

\(\dfrac{25}{75}=\dfrac{1}{3}=\dfrac{1\times2}{3\times2}=\dfrac{2}{6}\)

\(b.\dfrac{42}{56}=\dfrac{3}{4}=\dfrac{3\times2}{4\times2}=\dfrac{6}{8}\)

\(\dfrac{18}{48}=\dfrac{3}{8}\)

\(c.\dfrac{27}{81}=\dfrac{1}{3}=\dfrac{1\times4}{3\times4}=\dfrac{4}{12}\)

\(\dfrac{57}{76}=\dfrac{3}{4}=\dfrac{3\times3}{4\times3}=\dfrac{9}{12}\)

\(\dfrac{35}{84}=\dfrac{5}{12}\)

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a.3/6 va 2/6     b.24/32 va12/32  c.912/2736  2052/2736 1140/2736 

\(\dfrac{48}{60}=\dfrac{12.4}{12.5}=\dfrac{4}{5}\)

\(\dfrac{-18}{24}=\dfrac{18}{-24}=\dfrac{6.3}{6.\left(-4\right)}=\dfrac{3}{-4}\)

\(\dfrac{25}{-35}=\dfrac{5.5}{5.\left(-7\right)}=\dfrac{5}{-7}\)

48​=12.512.4​=54​

−1824=18−24=6.36.(−4)=3−424−18​=−2418​=6.(−4)6.3​=−43​

25−35=5.55.(−7)=5−7−3525​=5.(−7)5.5​=−75​
 

\(\dfrac{48}{60}=\dfrac{4}{5}\)

\(\dfrac{-18}{24}=\dfrac{3}{-4}\)

\(\dfrac{25}{-35}=\dfrac{5}{-7}\)

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

\(\frac{18}{48}=\frac{18:2}{48:2}=\frac{9}{24}\)

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

\(\frac{1212}{3939}=\frac{1212:101}{3939:101}=\frac{12}{39}\)

TL

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

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

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

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

nha bn\

HT

6/9=2/3

18/48=6/16

72/84=6/7

1212/3939=404/1313

giúp mik đi mà các bạn ơi

2/3; 5/12; 37/50; 6/7; 20/27; 2/3

Này anh nhớ anh có làm rồi em nha

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