Question

determine o valor da expressão 0,3333... . 3/5 - 1,2666 : 6 1/3

Answer 1

0,333..=
x=0,333...
10x=3,333...
10x-x=3,333...-0,333...
9x=3
x=3/9
x=1/3

1,2666...
x=1,26666...
10x=12,6666...
100x=126,666...
100x-10x=126,666...-12,666...
90x=114
x=114/90
x=19/15

6 1/3 =
18+1/3=
19/3

0,3333... . 3/5 - 1,2666... : 6 1/3=
1/3.3/5 - 19/15: 19/3=
3/15 - 19/15.3/19=
3/15 - 3/15=
0