Đáp án : $\frac{134}{51}$
Giải thích các bước giải :
H = ( $\frac{1}{9}$ - $\frac{5}{17}$ ) + $\frac{3}{6}$ + ( $\frac{-12}{17}$ + $\frac{1}{2}$ ) + $\frac{5}{9}$
H = $\frac{1}{9}$ - $\frac{5}{17}$ + $\frac{1}{2}$ + $\frac{-12}{17}$ + $\frac{1}{2}$ + $\frac{5}{9}$
H = ( $\frac{1}{9}$ + $\frac{5}{9}$ ) + ( $\frac{-12}{17}$ + $\frac{5}{17}$ ) + ( $\frac{1}{2}$ + $\frac{1}{2}$ )
H = $\frac{1+5}{9}$ + $\frac{(-12)+5}{17}$ + $\frac{1+1}{2}$
H = $\frac{6}{9}$ + $\frac{-7}{17}$ + $\frac{2}{2}$
H = $\frac{2}{3}$ + $\frac{-7}{17}$ + 1
H = $\frac{20}{30}$ + ( $\frac{-7}{17}$ + $\frac{17}{17}$ )
H = $\frac{20}{30}$ + $\frac{(-7)+17}{17}$
H = $\frac{34}{51}$ + $\frac{100}{170}$
H = $\frac{34+100}{51}$
H = $\frac{134}{51}$
