Zad.1
A
Zad.2
a) 20/3=6 2/3
9/7=1 2/7
b) 3 1/5=16/5
2 5/9=23/9
Zad.3
1) 1 10/7=2 3/7
2) 9/4+7/5=45/20+28/20=73/20=3 13/20
3) 17/15-4/15=13/15
4) 18/5-23/10=36/10-23/10=13/10=1 3/10
Zad.5
46 4/5-7 3/4 = 234/5-31/4 = 936/20-155/20 = 781/20 = 39 1/20
Zad.4
1) 1 4/9
2) 1/6
3) 5 2/7
Zad.6
1) 23/3600
Zad.7
20÷45; 12÷27; 16/36