$$( \frac{ 12 }{ 17 } + \frac{ 9 }{ -17 } )+( \frac{ -4 }{ 5 } + \frac{ 4 }{ -5 } )$$
$-\frac{121}{85}\approx -1.423529412$
$$\frac{12}{17}-\frac{9}{17}+\frac{-4}{5}+\frac{4}{-5}$$
$$\frac{12-9}{17}+\frac{-4}{5}+\frac{4}{-5}$$
$$\frac{3}{17}+\frac{-4}{5}+\frac{4}{-5}$$
$$\frac{3}{17}-\frac{4}{5}+\frac{4}{-5}$$
$$\frac{15}{85}-\frac{68}{85}+\frac{4}{-5}$$
$$\frac{15-68}{85}+\frac{4}{-5}$$
$$-\frac{53}{85}+\frac{4}{-5}$$
$$-\frac{53}{85}-\frac{4}{5}$$
$$-\frac{53}{85}-\frac{68}{85}$$
$$\frac{-53-68}{85}$$
$$-\frac{121}{85}$$
Show Solution
Hide Solution
$-\frac{121}{85} = -1\frac{36}{85} = -1.423529411764706$
