Question

помогите пожалуйста,срочно!!!

Answer 1

3.1

а)

$\frac{a}{5}+\frac{b}{5} =\frac{a+b}{5}$

б)

$\frac{6}{p} -\frac{q}{p} =\frac{6-q}{p}$

в)

$\frac{x}{12} -\frac{y}{12} =\frac{x-y}{12}$

г)

$\frac{m}{n} +\frac{3}{n} =\frac{m+3}{n}$

3.2

а)

$\frac{7a^{2}}{4x} +\frac{9a^{2}}{4x} =\frac{7a^{2}+9a^{2}}{4x} =\frac{16a^{2}}{4x} =\frac{4a^{2}}{x}$

б)

$\frac{x-y}{14} -\frac{x}{14} =\frac{x-y-x}{14} =-\frac{y}{14}$

в)

$\frac{48p^{8}}{5n} -\frac{23p^{8}}{5n} =\frac{48p^{8}-23p^{8}}{5n} =\frac{25p^{8}}{5n} =\frac{5p^{8}}{n}$

г)

$\frac{c}{25} +\frac{d-c}{25} =\frac{c+d-c}{25} =\frac{d}{25}$