\(\left(a\right)3\frac{2}{4}=3x4+2=\frac{14}{4}\)

\(\left(b\right)5\frac{3}{2}=5x3+2=\frac{17}{2}\)

5\(\frac{3}{5}\)= \(\frac{28}{5}\)

4\(\frac{2}{3}\)= \(\frac{14}{3}\)

6\(\frac{6}{7}\)= \(\frac{48}{7}\)

\(5\frac{3}{5}=5.6\)                           \(4\frac{2}{3}=4\left(6\right)\)                           \(6\frac{5}{7}=6\left(714285\right)\)

\(5\frac{3}{5}=5,6\)                    \(4\frac{2}{3}\)\(=4,15\)                       \(6\frac{5}{7}=6,14\)

\(\frac{31}{4}=7\frac{3}{4}\)

\(\frac{25}{3}=8\frac{1}{3}\)

\(\frac{36}{5}=7\frac{1}{5}\)

\(\frac{78}{21}=3\frac{5}{7}\)

\(\frac{65}{23}=2\frac{19}{23}\)

\(2\dfrac{3}{4}=\dfrac{2\times4+3}{4}=\dfrac{11}{4}\\ 3\dfrac{4}{5}=\dfrac{3\times5+4}{5}=\dfrac{19}{5}\\ 4\dfrac{3}{5}=\dfrac{4\times5+3}{5}=\dfrac{23}{5}\\ 11\dfrac{12}{13}=\dfrac{11\times13+12}{13}=\dfrac{155}{13}\\ 12\dfrac{11}{13}=\dfrac{12\times13+11}{13}=\dfrac{167}{13}\\ 3\dfrac{3}{5}=\dfrac{3\times5+3}{5}=\dfrac{18}{5}\)

2\(\dfrac{3}{4}\)=\(\dfrac{11}{4}\)

3\(\dfrac{4}{5}\)=\(\dfrac{19}{5}\)

4\(\dfrac{3}{5}\)=\(\dfrac{23}{5}\)

11\(\dfrac{12}{13}\)=\(\dfrac{155}{13}\)

12\(\dfrac{11}{13}\)=\(\dfrac{167}{13}\)

3\(\dfrac{3}{5}\)=\(\dfrac{18}{5}\).

của mình bị lỗi nha bạn

xl bạn

\(4\frac{2}{3}+2\frac{3}{4}.7\frac{3}{11}=\frac{14}{3}+\frac{11}{4}.\frac{80}{11}=\frac{14}{3}+20=\frac{14}{3}+\frac{60}{3}=\frac{74}{3}\)

\(4\frac{2}{3}+2\frac{3}{4}\times7\frac{3}{11}\)

\(=\frac{14}{3}+\frac{11}{4}\times\frac{80}{11}\)

\(=\frac{14}{3}+\frac{11\times80}{4\times11}\)

\(=\frac{14}{3}+20\)

\(=\frac{14}{3}+\frac{60}{3}\)

\(=\frac{74}{3}\)

a) 28/140=0.2                                               b) 2 23/75=2.3066

33/75=0.44                                                      4 216/900=4.24

261/900=0.29                                                   1 415/1250=1.332

415/1250=0.332                                               5 28/140=5.2

2 3/5 = 13/5

5 4/9= 49/9

9 3/8 =75/8

12 7/10= 127/10

Đúng ko

K mk nha

=13/5

=49/9

=76/8

=127/20

..xoxo..

\(2\frac{3}{5}=\frac{13}{5}\)

\(5\frac{4}{9}=\frac{49}{9}\)

\(9\frac{3}{8}=\frac{75}{8}\)

\(12\frac{7}{10}=\frac{127}{10}\)

23/4=\(5\dfrac{3}{4}\)

41/5=\(8\dfrac{1}{5}\)

 57/6=\(9\dfrac{3}{6}\)

 -26/6=\(-4\dfrac{2}{6}\)

 -8/3=\(-2\dfrac{2}{3}\)

\(\dfrac{23}{4}=5\dfrac{3}{4}\)

\(\dfrac{41}{5}=8\dfrac{1}{5}\)

\(\dfrac{57}{6}=9\dfrac{3}{6}\)

\(-\dfrac{26}{6}=-4\dfrac{2}{6}\)

\(-\dfrac{8}{3}=-2\dfrac{2}{3}\)

\(\dfrac{23}{4}=\dfrac{5.4+3}{4}=5\dfrac{3}{4}\)

\(\dfrac{41}{5}=\dfrac{8.5+1}{5}=8\dfrac{1}{5}\)

\(\dfrac{57}{6}=\dfrac{9.6+3}{6}=9\dfrac{3}{6}\)

\(\dfrac{-26}{6}=\dfrac{-4.6-2}{6}=-4\dfrac{-2}{6}\)

\(\dfrac{-8}{3}=\dfrac{-2.3-2}{3}=-2\dfrac{-2}{3}\)

huhu mk mới hoklowps 4

\(\frac{13}{6}\)và \(\frac{30}{6}\)

2  1/6=13/6

5  2/6=32/6=16/3