Qual é o valor da expressão: 0,333... + 6 ×7/ 7×6 / 0,777...
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0,333...+6x7/7x6/0,777...=
0,333...
x=0,333...
10x=3,333...
10x-x=3,333...-0,333...
9x=3
x=3/9
0,777...
x=0,777...
10x=7,777...
10x-x=7,777...-0,777...
9x=7
x=7/9
3/9+6x7/7x6/7/9=
3/9+42/42/7/9=
3/9+1/7/9=
3/9+1/1.9/7=
3/9+9/7=
3.7/63+9.9/63=
21/63+81/63=
102/63=
34/21
0,333...
x=0,333...
10x=3,333...
10x-x=3,333...-0,333...
9x=3
x=3/9
0,777...
x=0,777...
10x=7,777...
10x-x=7,777...-0,777...
9x=7
x=7/9
3/9+6x7/7x6/7/9=
3/9+42/42/7/9=
3/9+1/7/9=
3/9+1/1.9/7=
3/9+9/7=
3.7/63+9.9/63=
21/63+81/63=
102/63=
34/21
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