Question

Oblicz jak najprostszym sposobem :
4 1/2 - 2,3 -3,2 =
5 3/7 - 11,4+5 4/7=
-7,23+14 1/4 + (-8,02) =
-3,42+ 2 3/5 -1,18 =
-42,7 +(-13,6)+12,7 =
-3,72 - 2,69 +0,69 =
7,25 - 10 5/7 - 2 1/4 =
12 5/11 - 5,6 -13 5/11 =
2 4/7- 5 2/3 + 2/5 - 2 4/7 -1/3 -2/5 =
-1 2/3 +5/8 - 6 +2/3 -1/8-1/2 =
-5 3/5 - 2 3/4 +3 4/7 +3/5 +1 3/4 -2 1/7 =
2,4- 0,72 -6,173 -1,4+ 0,173+0,72 =
-3,14+2,6-6,27+2,14+1,4+1,27 =
-7,2+ 1,42 - 12,13 + 0,58-2,8 + 2,13 =

błagam was ludziska pomozcie mi :D daje naj i 10 pkn :)

Answer 1

4 1/2 - 2,3 - 3,2 = 4,5 - 5,5 = -1
5 3/7 - 11,4 + 5 4/7 = 11 - 11,4 = -0,4
-7,23+ 14 1/4+(-8,02) = - 7,23 +14,25 - 8,02=-15,25+14,25=-1
-3,42+2 3/5 - 1,18=-3,42+2,6-1,18=-4,6+2,6=-2
-42,7+(-13,6)+12,7=-42,7-13,6+12,7=-43,6
-3,72-2,69+0,69=-3,72-2=-5,72
7,25-10 5/7 -2,25=5-10 5/7=-5 5/7
12 5/11-5,6-13 5/11=-1-5,6=-6,6
- 5 2/3 - 1/3=-6
-1-6=-7
-5-1+1 3/7=-6+1 3/7=-4 4/7
1-6=-5
-1+4-5=-2
-10+2-10=-18