1 intreg 1 / 3 = ( 1 × 3 + 1) / 3 = 4 /3
4/3 × x - 0,(4) = ( - 2 / 3)^2
( - )^2 = ( - ) × ( - ) = ( + )
4x / 3 - 4 / 9 = 2^2 / 3^2
4x / 3 - 4 / 9 = 4 / 9
4x / 3 = 4 / 9 + 4 / 9
4x / 3 = 8 / 9
4x = 8 × 3 : 9
4x = 8 / 3
x = 8 / 3 × 1 / 4
x = 8 / 12
x = 2 / 3
x = 0 , (6)
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