Let
m-------> a mixed number between \(4\) and \(5\)
f-------> a fraction between \(0\) and \(1\)
p-----> the product of m and f
we will assume different values of m and f to obtain the product
1) For \(m=4.1\) and \(f=0.2\)
\(p=4.1*0.2\)
\(p=0.82\)
\(0.82 < 4\)
2) For \(m=4.9\) and \(f=0.9\)
\(p=4.9*0.9\)
\(p=4.41\)
\(4.41 > 4\) --------> not always the product is less than \(4\)
therefore
the answer is
\(False\)