Question

1/8p-1/4p+1/2p-3/4p

Answer 1

Общий знаменатель у дробей-8p
$\frac{1}{8p} - \frac{1}{4p} + \frac{1}{2p}- \frac{3}{4p} = \frac{1-2+4-6}{8p} = \frac{-3}{8p}$

Answer 2

$\frac{1}{8p} - \frac{1}{4p} + \frac{1}{2p} - \frac{3}{4p} = \frac{1-2+4-6}{8p} =- \frac{3}{8p}$