Question

Calculati diferentele:
a)0,(3)-0,1(3)
b)2,3(5)-1,(2)
c)0,(13)-0,(1)

Answer 1

a)
0,(3)-0,1(3)=3/9 -(13-1)/90=1/3 -12/90=1/3 -2/15=5/15 -2/15=3/15=1/5

b)
2,3(5)-1,(2)=(235-23)/90 -(12-1)/9=212/90 -11/9=106/45 -11/9=
=106/45 -55/45=51/45=17/15

c)
0,(13)-0,(1)=13/99 -1/9=13/99 -11/99=2/99