Odpowiedź:
zad 43.
cm
1 m = 100 cm
3/10 m = 3/10 * 100 cm = 30 cm
3 3/4 m = 3 3/4 * 100 cm = 15/4 * 100 cm = 15 * 25 cm = 375 cm
1 1/20 m = 1 1/20 * 100 cm = 21/20 * 100 cm = 21 * 5 cm = 105 cm
dag
1 kg = 100 dag
27/100 kg = 27/100 * 100 dagf = 27 dag
3/5 kg = 3/5 * 100 dag = 3 * 20 dag = 60 dag
3 1/4 kg = 3 1/4 * 100 dag = 13/4 * 100 dag = 13 * 25 dag = 325 dag
m(metr)
km = 1000 m
1/200 km = 1/200 * 1000 m = 1 * 5 m = 5 m
3 1/4 km = 3 1/4 * 1000 m = 13/4 * 1000 m = 13 * 250 m = 3250 m
5 1/25 km = 5 1/25 * 1000 m = 126/25 * 1000 m = 126 * 40 m = 5040 m
h(godzina)
doba = 24 h
1/3 doby = 1/3 * 24 h = 1 * 8h = 8 h
1/12 doby = 1/12 * 24 h = 1 * 2h = 2 h
1 1/2 doby = 1 1/2 * 24 h = 3/2 * 24 h = 3 * 12 h = 36 h
zad 44.
a)
2 5/7 = 19/7
2 7/8 = 23/8
2 3/10 = 23/10
b)
5 1/3 = 16/3
5 8/11 = 63/11
5 4/15 = 79/15
c)
6 4/7 = 46/7
6 5/9 = 59/9
6 13/15 = 103/15
zad 45
a)
6 5/7 = 5 12/7 do wstawienia liczba 12
b)
4 3/10 = 3 13/10 do wstawienia liczba 13
c)
8 8/5 = 9 3/5 do wstawienia liczba 3
d)
10 13/6 = 12 1/6 do wstawienia liczba 1
