Dane są liczby: x = 0,(45) oraz y = 0,1(36). Znajdź rozwinięcie dziesiętne liczby (x-y)
x=0,454545...
100x=45,454545
99x=45
x=45/99
x=9/11
y=0,1(36)
a=0,0363636...
100a=3,6363636
99a=3,6
a=36/990=
y=1/10+36/990=99/990+36/990=135/990
y=15/110
y=3/22
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x=0,454545...
100x=45,454545
99x=45
x=45/99
x=9/11
y=0,1(36)
a=0,0363636...
100a=3,6363636
99a=3,6
a=36/990=
y=1/10+36/990=99/990+36/990=135/990
y=15/110
y=3/22