Question

сократите дробь 168/756

Answer 1

$\frac{168}{756}= \frac{2^{3}*3*7 }{ 2^{2} * 3^{3}*7 } = \frac{2}{ 3^{2} } = \frac{2}{9}$

Answer 2

28/126 дальше сам там легко