Question

Сократите дробь: 28a^2/21a

Answer 1

$\frac{28a^{2} }{21a} = \frac{4a}{3}$

Answer 2

$\frac{28a^2}{21a}=\frac{7\cdot 4\cdot a^2}{7\cdot 3\cdot a} = \frac{4a}{3}$