Question

(1/7+1/14)*(4,2-9)=Пожалуйста помогите

Answer 1

Ответ:

(1/7+1/14)*(4,2-9)=(2/14+1/14)*(-4.8)=

3/14*(-48/10)=3/14*(-24/5)=3/7*-(12/5)= -36/35

Ответ -36/35

Answer 2

$( \frac{2}{14} + \frac{1}{14} ) \times ( - 4.8) = \frac{3}{14} \times ( - \frac{48}{10} ) = - \frac{3 \times 24}{7 \times 10} = - \frac{72}{70} = - \frac{36}{35} = - 1 \frac{1}{35}$