Question

ПОМОГИТЕ ПОЖАЛУЙСТА

Answer 1

$\frac{5+3d}{cd} :\frac{15+9d}{c^{2} } =\frac{5+3d}{cd}*\frac{c^{2}}{15+9d} =\frac{(5+3d)*c^{2} }{cd*3(5+3d)} = \frac{c}{3d}$

При с =3 и d = 1:

$\frac{3}{3*1} = 1$

Ответ: 1