Question

Вычислите:
1)-(12)*7=
2)(-3,4)*(-25)=
3)6*(-3/14)=
4)(-7/15)*(-3)=

Answer 1

1)-(12)*7= -84
2)(-3,4)*(-25)= 85
3)6*(-3/14)= - 9/7
4)(-7/15)*(-3)=7/5

Answer 2

1) -(12)*7= -84;
2)(-3,4)*(-25)=85;
3)6*(-3/14)=-$1 frac{2}{7}$
4)(-7/15)*(-3)=$frac{7}{5}$.