Let
A------> \(15\) into thirds
B------> \(14\) divided in half
we know that
\(A=\frac{15}{3}\\\\ A=5\\\\ B = \frac{14}{2}\\\\ B=7\)
so
the expression is equal to
\(expression=B-A\\expression=7-5\\\\expression=2\)
therefore
the answer is
The expression is equal to \(2\)