Question

Prosze o rozwiązanie

5/6+(-8/9)=
9 3/8-2 5/6=
4,8-1 1/3=
4/19*2 3/8=
3/7:7/3=
3 3/11:3=
12:2 2/5=
1/3*4/5kreska =
1 1/5kreska 4/5:2/3=

daje naj

Answer 1

5/6+(-8/9)= 
= 5/6 - 8/9 = 15/18 - 16/18 = -1/18

9 3/8-2 5/6=
= 9 9/24 - 2 20/24 = 8 33/24 - 2 20/24 = 6 13/24

4,8-1 1/3=
= 4 8/10 - 1 1/3 = 4 24/30 - 1 10/30 = 3 14/30 = 3 7/15

4/19*2 3/8=
= 4/19 * 19/8 = 1/2

3/7:7/3=
= 3/7 * 3/7 = 9/49

3 3/11:3=
= 36/11 : 3 = 12/11 = 1 1/11

12:2 2/5=
= 12 ; 12/5 = 12 * 5/12 = 5

1/3*4/5kreska =
= 1/3 * 4/5 ???(kreska?) = 4/15

1 1/5kreska 4/5:2/3=
= 1 1/5 -(?) 4/5 : 2/3 = 1 1/5 - 4/5 * 3/2 = 
= 1 1/5 - 6/5 = 6/5 - 6/5 = 0
Jesli masz w jednym dzialaniu ulamki zwykle i dziesietne, doprowadzasz wszystkie do tego samego typu (konieczne).

Answer 2

5/6-8/9=15/18-16/18= =1/18
9 3/8-2 5/6=75/8-17/6=225/24-68/24=8 33/24-2 20/24=6 13/24 
4,8-1 1/3=48/10-4/3=144/30-40/30=104/30=3 14/30
4/19 * 2 3/8 = 4/19 * 19/8 = 1/2
3/7:7/3=3/7*3/7=9/49
3 3/11 :3=36/3*1/3=36/9=4
12:2 2/5=12:12/5=12*5/12=5
1/3*4/5= 4/15
1 1/5 : (4/5:2/3)= 6/5: (4/5*3/2)=6/5:6/5=1