Odpowiedź:
Zadanie 12
1/10, 3/10, 7/10, 9/10
Zadanie 13
b) 9 godzin: 9/24 = 3/8
16 godzin: 16/24 = 2/3
c) 14 godzin: 14/168 = 1/12
12 godzin: 12/168 = 1/14
Zadanie 14 (tego zadania nie jestem pewna)
a) 1m = 100cm
20/100 = 1/5
75/ 100 = 3/4
1km = 1000m
250/1000 = 1/4
800/1000 = 4/5
1kg = 100dag = 1000 g
35/100 = 7/20
600/1000 = 60/100 = 6/10 = 3/5
1 t = 1000 kg
650/1000 = 13/20
40/1000 = 8/200 = 2/50 = 1/25
Zadanie 15
a) 9/10 = 18/20 = 27/30 = 36/40 = 45/50 = 54/60 = 63/70 = 72/80 = 81/90 = 90/100
b) 7/12 = 14/24 = 21/36 = 28/48 = 35/60 = 42/72 = 49/84 = 56/96
c) 10/25 = 20/50 = 30/75 = 40/100
d) 12/36 = 24/72
Mam nadzieję że pomogłam :)
