Question

If x is not equal to 0 then u/x + 5u/x - u/5x = what?

Answer 1

$\frac{u}{x}+\frac{5u}{x}-\frac{u}{5x}=\frac{5u}{5x}+\frac{25u}{5x}-\frac{u}{5x}=\frac{5u+25u-u}{5x}=\frac{29u}{5x}$

Answer 2

$\frac{u}{x}+\frac{5u}{x}-\frac{u}{5x}=\frac{u+5u}{x}-\frac{u}{5x}=\frac{6u}{x}-\frac{u}{5x}=\frac{6u\times5}{x\times5}-\frac{u}{5x}\\\\=\frac{30u}{5x}-\frac{u}{5x}=\frac{30u-u}{5x}=\boxed{\frac{29u}{5x}}$