Solve -2/5+1/9

$$\frac{ -2 }{ 5 } + \frac{ 1 }{ 9 }$$

Evaluate

$$-\frac{13}{45}\approx -0.288888889$$

Solution Steps

Fraction \frac{-2}{5} can be rewritten as -\frac{2}{5} by extracting the negative sign.

$$-\frac{2}{5}+\frac{1}{9}$$

Least common multiple of 5 and 9 is 45. Convert -\frac{2}{5} and \frac{1}{9} to fractions with denominator 45.

$$-\frac{18}{45}+\frac{5}{45}$$

Since -\frac{18}{45} and \frac{5}{45} have the same denominator, add them by adding their numerators.

$$\frac{-18+5}{45}$$

Add -18 and 5 to get -13.

$$-\frac{13}{45}$$

Factor

$$-\frac{13}{45} = -0.28888888888888886$$