The equation is
.
(Apply distributive property:
)
(Multiply:
)
The product of two different signs is negative.
\
(Apply distributive property:
)
(Multiply:
)
Apply commutative property of addition: a + b = b + a.
\
To add fractions the denominators must be equal.
\Find the least common denominator (LCD).
\Multiples of 3: 3,6,9,12,15,18,21......
\Multiples of 5: 5,10,15,20,25,30.......
\The least common multiple of 3 and 5 is 15.
\Rewrite each fraction with a common denominator of 15.
\
and 
and 
Rewrite fractions using the LCD 15.
\

(Add:
)
(Add:
)

The simplified expression of
.