77/45

7/6

29/10

\(\dfrac{3}{5}+\dfrac{4}{3}\times\dfrac{5}{6}=\dfrac{3}{5}+\dfrac{10}{9}=\dfrac{27}{45}+\dfrac{50}{45}=\dfrac{77}{45}\)

\(2-\dfrac{7}{6}+\dfrac{1}{3}=\dfrac{12}{6}-\dfrac{7}{6}+\dfrac{2}{6}=\dfrac{7}{6}\)

\(\dfrac{7}{6}\times3-\dfrac{3}{5}=\dfrac{7}{2}-\dfrac{3}{5}=\dfrac{35}{10}-\dfrac{6}{10}=\dfrac{29}{10}\)

giải chi tiết đi

\(3\times\dfrac{5}{11}=\dfrac{15}{11}\)

\(\dfrac{16}{64}\times\dfrac{15}{24}=\dfrac{5}{32}\)

\(\dfrac{1}{6}:\dfrac{1}{5}=\dfrac{5}{6}\)

\(\dfrac{7}{12}:\dfrac{1}{4}=\dfrac{7}{3}\)

= 15/11

= 5/32

= 5/6

= 7/3

= 59

= 47/5

= 11/18

= 31/15     nha

3 + 1 + 6 = 4 + 6 = 10                                                            

8 – 4 – 3 = 4 – 3 = 1

9 – 1 – 3 = 8 – 3 = 5                                                               

3 + 4 + 2 = 7 + 2 = 9

\(\dfrac{3}{4}+\dfrac{1}{4}\times\dfrac{2}{5}-\dfrac{1}{2}\\ =\dfrac{3}{4}+\dfrac{1}{10}-\dfrac{1}{2}\\ =\dfrac{15}{20}+\dfrac{2}{20}-\dfrac{10}{20}\\ =\dfrac{15-10+2}{2}\\ =\dfrac{7}{2}\)

\(=\left(3-8+\dfrac{1}{2}-\dfrac{1}{2}\right)-\left(\dfrac{4}{5}+\dfrac{1}{5}\right)-1\)

\(=-5-1-1=-7\)

a: =1/2+3/2=2

b: =2/5+7/5=9/5

c: =2/3+2/3=4/3

ai trả lời cho mình vs sos

3/6 + 12/8 = 1/2 + 3/2 = 4/2 = 2

2/5 + 56/40 = 2/5 + 7/5 = 9/5

4/6 + 16/24 = 2/3 + 2/3 = 4/3

a,

b,

3 + 1 + 1 = 4 + 1 = 4                                 

6 + 1 + 2 = 7 + 2 = 9

3 + 1 + 2 = 4 + 2 = 6                                   

5 – 2 – 2 = 3 – 2 = 1

4 + 3 + 1 = 7 + 1 = 8                                   

8 – 1 – 3 = 7 – 3 = 4

= 4

\(\dfrac{3}{7}+\dfrac{\left(-18\right)}{5}+\dfrac{18}{7}+\dfrac{23}{5}\)

\(=\left(\dfrac{3}{7}+\dfrac{18}{7}\right)+\left(\dfrac{-18}{5}+\dfrac{23}{5}\right)\)

\(=3+1\)

\(=4\)

= 4