Answer:
The expression can be simplified as \(17\frac{1}{2}\)m·n
Step-by-step explanation:
Given the expression:
(m·5/2·n·7/2)·2
\((m\frac{5}{2} n\frac{7}{2} )2=(m\frac{35}{4} n)2=m\frac{70}{4} n=\frac{70}{4} mn\)
The fraction can be expressed as:
\frac{70}{4}=\frac{68+2}{4}=\frac{68}{4}+\frac{2}{4}=17+\frac{1}{2}=17\frac{1}{2}
The expression can be simplified as \(17\frac{1}{2}\)m·n
