Question

$x \div 200 + x \div 400 + x \div 600 + x \div 800$

Answer 1

$\frac{x}{200} + \frac{x}{400} + \frac{x}{600} + \frac{x}{800} \\ = \frac{12x + 6x + 4x + 3x}{2400} = \frac{25x}{2400} \\ = \frac{x}{96}$