\(132\div\frac{99}{55}+\frac{3}{4}\)

\(=\frac{220}{3}+\frac{3}{4}\)

\(=\frac{880}{12}+\frac{9}{12}\)

\(=\frac{889}{12}\)

\(=74\frac{1}{12}\)

d) 12x 156 - 12 x 55 - 12

= 12 x ( 156 - 55 - 12 )

= 12 x 100

= 1200

e ) 12 x 11 + 21 x 11 + 11 x 33

= ( 12+ 21 + 33) x 12

= 66 x 11

= 726

g) 132 x 11 - 11 x 32 - 54 x 11

= ( 132 - 32 - 54 ) x 11

= 46 x 11

= 506

d) 12 x 156 - 12 x 55 - 12 = 12x(156 - 55 - 1 ) = 12 x 100 = 1200

e) 12 x 11 + 21 x 11 + 11 x 33 = 11  x ( 12 + 21 + 33 ) = 11  x 66 = 726

g) 132 x 11 - 11 x 32 - 54 x 11 = 11 x ( 132 - 32 - 54 ) = 11 x 46 = 506

188845/41

20,4375

20,4375

4 x 4 = 16

4 x 1 = 4

4 x 5 = 20

4 x 8 = 32

4 x 9 = 36

9 x 9 = 81 

4 x 4 = 16

4 x 1 = 4

4 x 5 = 20

4 x 8 = 32

4 x 9 = 36

9 x 9 = 81

Chúc bạn học tốt !!!

0

5

5 tick nha Đnh Công An

\(\frac{69}{77}\times\frac{21}{11}=\frac{69\times21}{77\times11}=\frac{1449}{847}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{69}{77}\times\frac{11}{21}=\frac{69\times11}{77\times21}=\frac{759}{1617}=\frac{23}{49}\)

\(\frac{66}{77}-\frac{21}{11}=\frac{66}{77}-\frac{147}{77}=\frac{66-147}{77}=\frac{-81}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{69}{77}+\frac{147}{77}=\frac{69+147}{77}=\frac{216}{77}\)

~ Hok tốt ~

\(\frac{69}{77}.\frac{21}{11}=\frac{207}{121}\)

\(\frac{69}{77}:\frac{21}{11}=\frac{23}{49}\)

\(\frac{69}{77}-\frac{21}{11}=-\frac{78}{77}\)

\(\frac{69}{77}+\frac{21}{11}=\frac{216}{77}\)

***

1.3865696e+16

1.3865696e+16

k mình nha

Thùng bé chứa đc ( 654 - 132 ) : 2 = 260 lít nước

Thùng lớn chứa đc 654 - 260 = 390 lít nước 

Xin tick

E = 11x7+11x9+11x11+ 11 x 12+11x13+11x15

tích mik nha

E = 77 + 99 + 121 + 132 + 143 + 165

Nhận xét : Ta thấy các số này đều chia hết cho 11

Do đó :

E = 11 x 7 + 11 x 9 + 11 x 11 + 11 x 12 + 11 x 13 + 11 x 15