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Alless
a fost răspuns

calculati,apoi scrieti rezultatul sub forma de fractie zecimala :
a) ,0,(2)+0,(5)
b)7,(3)+2,(13)
c) 0,1(2) +5,(4)
d)5,(6)-2,(8)
e)3,(43)-1,(5)
f)12,1(5)-3,(4)

Răspuns :

Spidie
a) ,0,(2)+0,(5)= 2/9+5/9=7/9
b)7,(3)+2,(13)= 66/9+211/99=726/99+211/99=937/99
c) 0,1(2) +5,(4)=11/90+49/9=11/90+490/90=501/90= 167/30
d)5,(6)-2,(8)= 51/9-26/9=25/9
e)3,(43)-1,(5)=340/99-14/9=340/99-154 /99=186/99=62/33
f)12,1(5)-3,(4) =1094/90-31/9=1094/90-310/90=784/90=392/45


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