The expression is
and the value of
.
Substitute value of
in the above expression.


Write the mixed numbers into improper fraction.
\The improper fraction of
.
The improper fraction of
.
The improper fraction of
.
Substitute improper fraction values in the above expression.
\
Apply rule of different signs.
\
Take absolute values.
\
The LCM of 4, 5 and 2 is 20 and apply LCM rule:
.



.
The value of the expression is
.