Question

Se x= 0,949494... e y= 0,666..., calcule x+y deixando na forma de fração geratriz.

Answer 1

x=0,949494...
y=0,666...

x=0,949494...
100x=94,9494...
100x-x=94,9494...-0,949494...
99x=94
x=94/99

y=0,666...
10y=6,666...
10y-y=6,666...-0,666...
9y=6
y=6/9

x+y
94/99+6/9=
94/99+11.6/99=
94/99+66/99=
160/99