Odpowiedź:
1
a) 9/5 = 1 4/5
b) 17/4 = 4 1/4
c) 6 5/7 = 5 12/7
d) 3 = 2 3/3
2
b) 5/7 + 6/7 = 11/7 = 1 4/7
c) 2 2/5 + 4/5 = 2 6/5 = 3 1/5
3
a) 2/3 + 1/4 = 8/12 + 3/12 = 11/12
b) 5/9 + 3/5 = 25/45 + 27/45 = 52/45
c) 2/3 + 4/5 = 10/15 + 12/15 = 22/15 = 1 7/15
d) 5/8 + 3/7 = 35/48 + 24/48 = 59/48 = 1 11/48
e) 1 1/2 + 2 3/8 = 1 4/8 + 2 3/8 = 3 7/8
f) 2/9 + 1 7/27 = 6/27 + 1 7/27 = 1 13/27
g) 1 5/6 + 3 1/9 = 1 45/54 + 3 6/54 = 4 51/54
h) 2 1/10 + 1 7 /15 = 2 3/10 + 1 14/30 = 3 17/30
