Question

     Tính:

a, 4 - \(\frac{5}{7}\)

b, \(\frac{1}{2}\): 3

c, 578,97 x 307

d, 266,22 : 34

Answer 1

a,=23/7

b,1/6

c,177743.79

d,78/200

Answer 2

    Tính:

a, 4 - \(\frac{5}{7}\)= \(\frac{23}{7}\)

b, 12 : 3 = 4

c, 578,97 x 307 = 177743,79

d, 266,22 : 34 =7,83

HOK TỐT

Answer 3

a, 4 - 5/7 = 28/7- 5/7 = 23/7

b, 1/2 : 3 = 1/2 x 1/3 = 1/6

c, 578,97 x 307 = 177743,79

d, 266,22 : 34 = 7,83

Chúc bạn học tốt !

Answer 4

4-\(\frac{5}{7}\)=\(\frac{23}{7}\)

\(\frac{1}{2}\):3=\(\frac{1}{6}\)

578,97x307=177743.97

266,22:34=7,83

Answer 5

a,4-5/7=23/7

b,1/2:3=1/6

c,578,97x307=177743,79

d,266,22:34=7,83

k cho mik nha

Answer 6

a,\(4-\frac{5}{7}=\frac{23}{7}=3,\left(285714\right)\)

b,\(\frac{1}{2}:3=\frac{1}{6}=0,1\left(6\right)\)

c,578,97 .307=177743,79

d,\(266,22:4=\frac{13311}{200}=66,555\)

chúc bạn học tốt! 

Answer 7

a)\(4-\frac{5}{7}=\frac{4}{1}-\frac{5}{7}=\frac{28}{7}-\frac{5}{7}=\frac{28-5}{7}=\frac{23}{7}\)

b)\(\frac{1}{2}:3=\frac{1}{2}:\frac{3}{1}=\frac{1}{2}\cdot\frac{1}{3}=\frac{1\cdot1}{2\cdot3}=\frac{1}{6}\)

c 578,97 x 307 =177743,79

d 266,22:34=7,83

Answer 8

a) \(4-\frac{5}{7}=\frac{28}{7}-\frac{5}{7}=\frac{23}{7}\)

b) \(\frac{1}{2}\div3=\frac{1}{2}\times\frac{1}{3}=\frac{1}{6}\)

c) 578,97 x 307 = 177743,79

d) 266,22 : 34 = 7,83