Oblicz:
a )0,(3) + 1/7 =
b ) 0,(4) + 0,(5) =
c ) 0,1(2) + 0,2(1) =
d ) 1,(09) + o,(90) =
Wyniki to
a ) 10/21
b ) 1
c ) 1/3 = 0,(3)
d ) 2
W przykładzie a i b wyszły mi prawidłowe wyniki. w reszcie nie.
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a) ... = 3/9 + 1/7 = 1/3 + 1/7 = 7/21 + 3/21 = 10/21
b) .... = 4/9 + 5/9 = 9/9 = 1
c) ..... 1,(2) : 10 + 2,(1) : 10 = 1 i 2/9 : 10 + 2 i 1/9 : 10 = 11/9 * 1/10 + 19/9 * 1/10 = 11/90 + 19/90 = 30/90 = 3/9 = 1/3
d).... = 1 i 9/99 + 90/99 = 1 i 1/11 + 10/11 = 1 i 11/11 = 2