Question

1 Oblicz ;

2 1 3

6 - 2 --- - 3 --- + ---

3 6 4

2. Oblicz ;

1 2

2 --- - 1 --- * (- 0,9)

2 3

--------------------------------

0,37 * 10

Answer 1

6 - 2 2/3 - 3 1/6 + 3/4 = 3 1/3 - 3 1/6 + 3/4 = 3 2/6 - 3 1/6 + 3/4 = 1/6 + 3/4 = 2/12 + 9/12 = 11/12

 

2 1/2 - 1 2/3 * (-0,9)      2 1/2 - 5/3 * (-9/10)

___________________  = ____________________ =

 0,37 * 10                                     3,7

 

2 1/2 - (- 1 1/2)       2 1/2 + 1 1/2          4        

_______________ = _______________ = _______ = 

      3 7/10                      3 7/10            3 7/10 

 

 4

______ = 4 * 10/37 = 40/37 = 1 3/37

37/10