1. 7 i 10/35+5 i 4/7 - 3 i 2/5= 7 i 10/35+5 i 20/35- 3 i 12/35= 9 i 18/35
2. 1 i 13/25+ 17/25- 1 i 4/5= 1 i 13/25+17/25-1 i 20/25= 2 i 1/25
myślę ze pomogłam proszę o naj <3
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= 7 10/35 + 5 20/35 - 3 14/35 =
= 9 16/35
1 13/25 + 17/25 - 1 4/5 =
= 1 13/25 + 17/25 - 1 20/25 =
= 10/25 =
= 2/5
1. 7 i 10/35+5 i 4/7 - 3 i 2/5= 7 i 10/35+5 i 20/35- 3 i 12/35= 9 i 18/35
2. 1 i 13/25+ 17/25- 1 i 4/5= 1 i 13/25+17/25-1 i 20/25= 2 i 1/25
myślę ze pomogłam proszę o naj <3