Odpowiedź :
A) 5 5/7+ 4 4/7= 40/7+32/7= 72/7= 10 2/7
B) 3 15/20+ 1 8/20= 75/20+28/20= 103/20= 5 3/20
C) 4 5/9+ 3 6/9= 41/9+ 33/9= 74/9= 8 2/9
D) 8 8/10+ 3 9/10= 88/10+ 39/10= 127/10= 12 7/10
B) 3 15/20+ 1 8/20= 75/20+28/20= 103/20= 5 3/20
C) 4 5/9+ 3 6/9= 41/9+ 33/9= 74/9= 8 2/9
D) 8 8/10+ 3 9/10= 88/10+ 39/10= 127/10= 12 7/10
a) 5 5/7 + 4 4/7 = 9 9/7 = 10 2/7
b) 3 15/20 + 1 8/20 = 4 23/20 = 5 3/20
c) 4 5/9+ 3 6/9 = 7 11/9 = 8 2/9
d) 8 8/10 + 3 9/10 = 11 17/10 = 12 7/10