Question

Tính giá trị biểu thức :

   a. 9,66  :  4,2  + 7,644                          b. 35,52 : 5,6  + 26,64  : 7,2

    = ......................................                        = ....................................

    = ........................................                      = ...................................

Answer 1

\(a,9,66:4,2+7,644\\ =2,3+7,644\\ =9,944\\ b,35,52:5,6+26,64:7,2\\ =\dfrac{222}{35}+\dfrac{37}{10}\\ =\dfrac{703}{70}\)

Answer 2

\(\text{ a. 9,66 : 4,2 + 7,644. }\)

\(=2,3+7,644=9,944.\)

\(\text{b. 35,52 : 5,6 + 26,64 : 7,2}.\)

\(=\dfrac{222}{35}+3,7=\dfrac{703}{70}.\)

Answer 3

a: =2,3+7,644=9,944

b: =222/35+37/10=703/70

Answer 4

  a. 9,66  :  4,2  + 7,644       

= 2,3 + 7,644       
= 9,944 

b. 35,52 : 5,6  + 26,64  : 7,2

= 6,34285714286 + 3,7

= 10,0428571429