# How do you evaluate #(- \frac { 13} { 7} ) + ( - \frac { 3} { 5} )#?

Find like denominators, add numerators, simplify if possible.

To add fractions with different denominators, you must change all the fractions of interest into a fraction with like denominators. Simplify afterwards.

#(-13/7) + (-3/5)#

The lowest common denominator is

#=5(-13/7) + 7(-3/5)#

#=(-65/35) + (-21/35)#

Now with like denominators, we can add the numerators.

#=(-86/35)#

If possible, simplify;

Hope this helps :)

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7