a) 2/5 + 3/5= 1/7 + 2/7 + 3/7= 3/4 + 2/4 + 1/4= b) 1 i 2/5 + 1/5= 4/8 + 1 i 3/8= 3/7 + 1 i 2/7= c) 2 i 2/3 + 1/3= 1 i 1/4 + 3/4= 6/10 + 3 i 4/10= d) 2 i 1/2 + 1= 2+ 1 i 1/3 2/10 + 1 i 3/10 Pliss potrzebuje na teraz!!!

A) 2/5 + 3/5=5/5=11/7 + 2/7 + 3/7=6/7 3/4 + 2/4 + 1/4=6/4=1 2/4=1 1/2 b) 1 i 2/5 + 1/5=1 3/5 4/8 + 1 i 3/8=1 7/8 3/7 + 1 i 2/7=1 5/7 c) 2 i 2/3 + 1/3=2 3/3=3 1 i 1/4 + 3/4=1 4/4=2 6/10 + 3 i 4/10= d) 2 i 1/2 + 1=3 1/2 2+ 1 i 1/3=3 1/3 2/10 + 1 i 3/10 =1 5/10=1 1 /2

a 1,6/7,1 1/2 b 1 3/5, 1 7/8,1 5/7 c 3, 2, 4 d3 1/2, 3 1/3, 1 1/2