Odpowiedź:
Zad.3
a) 4/7 :3/5= 4/7*5/3= 20/21
b) 1/7: 2/5= 1/7*5/2= 5/14
c) 2/9 :1/4= 2/9*4/1= 8/9
d) 6:1/2= 6*2/1= 12
e) 5 :2/3= 5*3/2= 15/2= 7 1/2
f) 12 : 7/4= 12 *4/7= 48/7= 6 6/7
Zad.4
1 : 3/4 = 1 · 4/3 = 4/3 = 1 i 1/3
4/3 : 3/4 = 4/3 · 4/3 = 16/9 = 1 i 7/9
1/3 : 3/4 = 1/3 · 4/3 = 4/9
1 · 3/4 = 3/4
4/3 · 3/4 = 1
1/3 · 3/4 = 1/4
6 : 3/4 = 6 · 4/3 = 8
7/4 : 3/4 = 7/4 · 4/3 = 7/3 = 2 i 1/3
5/8 : 3/4 = 5/8 · 4/3 = 5/6
Zad.5
3/4 ÷ 2/7 = 21/8
3/5 ÷ 1/3 = 9/5
4/5 ÷ 5/3 = 12/25
4/5 ÷ 5/4 = 16/25
Mam nadzieję, że pomogłam :)
