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a)
0,3 = 3/10
0,7 = 7/10
1,1 = 1 1/10
12,9 = 12 9/10
b)
0,37 = 37/100
0,09 = 9/100
34,51 = 34 51/100
10,03 = 10 3/100
c)
0,479 = 479/1000
0,027 = 27/1000
0,09 = 9/100
10,047 = 10 47/1000
Zad.2
Zapisz w postaci ułamka zwykłego nieskracalnego.
a)
0,4 = 4/10 = 2/5
0,6 = 6/10 = 3/5
0,2 = 2/10 = 1/5
b)
0,36 = 36/100 = 18/50 = 8/25
0,08 = 8/100 = 2/25
0,60 = 60/100 = 3/5
c)
0,358 = 358/1000 = 97/250
0,045 = 45/1000 = 9/200
0,06= 6/100 = 3/50
d)
0,375 = 375/1000 = 15/40 = 3/8
0,625 = 625/1000 = 25/40 = 5/8
0,048 = 48/1000 = 6/125
Zad.3
Znajdź rozwinięcie dziesiętne każdej liczby.
a)
4/5 = 0,8
3/4 = 0,75
12/5 = 24/10 = 2,4
7 i 1/4 = 7,25
b)
7/20 = 0,35
39/20 = 195/100 = 1,95
2 i 19/25 = 2,76
26/50 = 0,52
c)
1/8 = 0,125
49/250 = 0,196
7 i 23/40 = 7,575
20 i 87/125 = 8,696