Question

DAJE NAJ + 20 PKT :v
1,2 * (-13,5) =
-2,7 * (8 1/3) =
- 1 1/6 * (-3 3/5) =
2/3 * (-2 2/5) =
-3,6 * (-3,4) =
4 1/2 * 15 1/3 =
- 2/5 * 1,8 =
-400 * (-0,09) =
3 1/3 * (- 4,5) =

Answer 1

1,2 * (-13,5) = -16,2
-2,7 * (8 1/3) = -27/10 * 25/3 = -9/2 * 5 = -27/2 = -13 1/2

- 1 1/6 * (-3 3/5) = -7/6 * (-18/5) = 7 * 3/5 = 21/5 = 4 1/5

2/3 * (-2 2/5) = 2/3 * (-12/5) = 2 * (-4/5) = -8/5 = -1 3/5

-3,6 * (-3,4) = 12,24

4 1/2 * 15 1/3 = 9/2 * 46/3 = 3 * 23 = 69

- 2/5 * 1,8 = -0,4 * 1,8 = -0,72
-400 * (-0,09) = 36
3 1/3 * (- 4,5) = 10/3 * (-45/10) =
= 10/3 * (-9/2) = 5 * (-3) = -15
jesli masz w jednym dzialaniu ulamki zwykle i dziesietne, musisz doprowadzic je do ulamkow tego samego typu