Question

Oblicz:
-2 1,5+3,3
1 5/6-3 1/3
4,3-7,5
-4,5-2 1/4
-3 1/6-(-5 5/6)
7 1/3+(-4 5/6)
-5 4/7+7
1,23-9
-6-(-4 5/9)

Bardzo proszę o pomoc potrzebuję na dzisiaj dam naj i nie chce samych wyników

Answer 1

-2 1/5 + 3,3 =  - 2,2 + 3,3 = 3,3 - 2,2 = 1,1
1 5/6 - 3 1/3 = 1 5/6 - 3 2/6 = -(3 2/6 - 1 5/6) = - (2 8/6 - 1 5/6) = - 1 3/6 = - 1 1/2
4,3 - 7,5 = - (7,5 - 4,3) = - 3,2
-4,5 - 2 1/4 = - 4,5 - 2,25 = -4,5 + (-2,25) = -6,75
-3 1/6 - (-5 5/6) = -3 1/6 + 5 5/6 = 5 5/6 - 3 1/6 = 2 2/3
7 1/3 + (-4 5/6) = 7 2/6 - 4 5/6 = 6 8/6 - 4 5/6 = 2 3/6 = 2 1/2
-5 4/7 + 7 = - 5 4/7 + 6 7/7 = 6 7/7 - 5 4/7 = 1 3/7
1,23 - 9 = -(9 - 1,23) = -7,77
-6 - (-4 5/9) = -6 + 4 5/9 = -(5 9/9 - 4 5/9 ) = - 1 4/9

Answer 2

-2 1/5+3,3 = - 2,2 + 3,3 = 1,1
1 5/6-3 1/3 = 11/6 - 10/3 = 11/6 - 20/6 = - 9/6 = - 1 3/6 = - 1 1/2
4,3-7,5 = - 3,2
-4,5-2 1/4 = - 45/10 - 9/4 = - 90/20 - 45/20 = - 135/20 = - 6 15/20 = - 6 3/4
-3 1/6-(-5 5/6) = -19/6 + 35/6 = 16/6 = 2 4/6 = 2 2/3
7 1/3+(-4 5/6) = 22/3 - 29/6 = 44/6 - 29/6 = 15/6 = 2 3/6 = 2 1/2
-5 4/7+7 = - 5 4/7 + 6 7/7 = 1 3/7
1,23-9 = -7,77
-6-(-4 5/9) = -6 + 4 5/9 = -5 9/9 + 4 5/9 = - 1 4/9