Question

20/35:(-4/7)este egal cu

Answer 1

$\frac{20}{35}:(-\frac{4}{7})=-\frac{20}{35}^{(5}\cdot\frac{7}{4}=-\frac{4}{7}\cdot\frac{7}{4}=-1$

[tex](\frac{3}{2}+\frac{4}{3}+\frac{5}{4})^2\cdot(\frac{1}{2}-\frac{2}{4})=0,\\ \text{deoarece } \frac{1}{2}-\frac{2}{4}^{(2}=\frac{1}{2}-\frac{1}{2}=0[/tex]

Answer 2

*=ori
/=supra
^=putere
20/35=(2^2*5)/(5*7)=(20/5)/(35/5)=4/7
4/7/[(-4)/7]=-1