Simplify the following:
$\frac{6x}{2}-\frac{7x}{2}$6x2−7x2
Consider the algebraic fractions $\frac{2m}{5}$2m5 and $\frac{4m}{6}$4m6.
Simplify the following: $\frac{x}{5}+\frac{4x}{7}$x5+4x7
Simplify the following: $\frac{3x}{5}-\frac{x}{7}$3x5−x7