Answer:
2/5
Explanation:
First, we need to write the number 2 1/2 as a fraction. This number is equal to
[tex]2\frac{1}{2}=\frac{(2\times2)+1}{2}=\frac{4+1}{2}=\frac{5}{2}[/tex]
Then, the multiplicative inverse of 2 1/2 is the multiplicative inverse of 5/2. The multiplicative inverse of a fraction can be calculated as 1 divided by the fraction, so
[tex]1\div\frac{5}{2}=1\times\frac{2}{5}=\frac{2}{5}[/tex]
Therefore, the multiplicative inverse of 2 1/2 is 2/5
