Solve -a/-a+-b/-b+-c/c

$$\frac { - a } { - a } + \frac { - b } { - b } + \frac { - c } { c }$$

Evaluate

$$1$$

Short Solution Steps

Divide -a by -a to get 1.

$$1+\frac{-b}{-b}+\frac{-c}{c}$$

Divide -b by -b to get 1.

$$1+1+\frac{-c}{c}$$

Add 1 and 1 to get 2.

$$2+\frac{-c}{c}$$

To add or subtract expressions, expand them to make their denominators the same. Multiply 2 times \frac{c}{c}.

$$\frac{2c}{c}+\frac{-c}{c}$$

Since \frac{2c}{c} and \frac{-c}{c} have the same denominator, add them by adding their numerators.

$$\frac{2c-c}{c}$$

Combine like terms in 2c-c.

$$\frac{c}{c}$$

Cancel out c in both numerator and denominator.

$$1$$

Factor

$$1$$