How Do I Derive Equation 2 from Equation 1 in Physics?

[mazz1801]

Homework Statement

This is in a written example of some lecture notes that I have.
Is in the middle of a question about the forces of contact between two blocks on a smooth table.
I don't need help with the rest of the question.

I just want to know how to get from equation 1 below to equation 2.
Is it some math shortcut that I am unaware of or am I missing out on some calculations

Homework Equations

F(1-(m₁/m₁+m₂))

Goes to

(m₂/m₁+m₂)F

 

[MrWarlock616]

Don't worry, it's simple math calculation:$F(1-\frac{m_1}{m_1+m_2})=F(\frac{m_1+m_2-m_1}{m_1+m_2})=F(\frac{0+m_2}{m_1+m_2})$which then becomes:$F(\frac{m_2}{m_1+m_2})$ or can be written as $(\frac{m_2}{m_+m_2})F$

 

[mazz1801]

Thank you so much! :)