Question

Oblicz :

-5/6 + 1/3 =

4/9 +(-5/6) =

- 7/8 + 1/6 =

-2 1/4 + 6 5/6 =

-3 7/8 + 2 1/2 -

-6 8/9 + 10 1/10 =

4,2 + ( - 3 1/3 ) =

6,8 + ( -2 8/9 ) =

- 7,45 + 10 1/5 =

-5/9 +(-1/3 ) =

- 6/7 + ( - 1/5 ) =

-2 3/4 + ( - 1 1/2 ) =

- 6 5/8 + ( - 3 3/4 ) =

- 3,1 + ( - 1/3 ) =

-6,8 + ( - 1 1/9 ) =

14 - 16 2/5 =

- 5 2/3 - 8 1/2 =

-7,2 - ( - 3 1/3 ) =

Answer 1

-5/6 + 1/3 = -5/6 + 2/6 = -3/6 = -1/2

4/9 +(-5/6) = 8/18 - 15/18 = -7/18

- 7/8 + 1/6 = -21/24 + 4/24 = -17/24

-2 1/4 + 6 5/6 = -2 3/12 + 6 10/12 = 4 7/12

-3 7/8 + 2 1/2 = -3 7/8 + 2 4/8 = - 1 3/8

-6 8/9 + 10 1/10 = -6 80/90 + 10 9/90 = -6 80/90 + 9 99/90 = 3 19/90

4,2 + ( - 3 1/3 ) = 4 2/10 - 3 1/3 = 4 6/30 - 3 10/30 = 3 36/10 - 3 10/30 = 26/30 = 13/15

6,8 + ( -2 8/9 ) = 6 4/5 - 2 8/9 = 6 36/45 - 2 40/45 = 5 81/45 - 2 40/45 = 3 41/45

- 7,45 + 10 1/5 = - 7 45/100 + 10 20/100 = -7 45/100 + 9 120/100 = 2 75/100 = 2,75

 

 

-5/9 +(-1/3 ) = -5/9 - 3/9 = -8/9

- 6/7 + ( - 1/5 ) = -30/35 - 7/35 = -37/35 = -1 2/35

-2 3/4 + ( - 1 1/2 ) = -2 3/4 - 1 2/4 = -3 5/4 = -4 1/4

- 6 5/8 + ( - 3 3/4 ) = -6 5/8 - 3 6/8 = -9 11/8 = -10 3/8

- 3,1 + ( - 1/3 ) = -3 1/10 - 1/3 = -3 3/30 - 10/30 = -3 13/30

-6,8 + ( - 1 1/9 ) = -6 4/5 - 1 1/9 = -6 36/45 - 1 5/45 = -7 41/45

 

14 - 16 2/5 = -2 2/5

- 5 2/3 - 8 1/2 = -5 4/6 - 8 3/6 = -13 7/6 = -14 1/6

-7,2 - ( - 3 1/3 ) = -7 1/5 + 3 1/3 = -7 3/15 + 3 5/15 = -6 18/15 + 3 5/15 = -3 13/15