How do you evaluate #(- \frac { 13} { 7} ) + ( - \frac { 3} { 5} )#?
1 Answer
Nov 28, 2017
Find like denominators, add numerators, simplify if possible.
Explanation:
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 :)