[tex]A) (\frac{12}{25}:\frac{4}{5}):\frac{9}{35}=
=(\frac{12x5}{25x4})x\frac{35}{9}
=\frac{3}{5}x \frac{35}{9}
= \frac{7}{3} [/tex]
B) [tex] \frac{25}{12}x(\frac{5}{4}x\frac{9}{35})=
=\frac{25x3}{4x4x7}
=\frac{75}{112} [/tex]
C) [tex] \frac{25x16}{36x7}:\frac{60x7}{49x162}
= \frac{25x16x49x162}{36x49x60}
= \frac{25x16x81}{36x30}
=\frac{25x4x9}{30}
=\frac{5x4x3}{2}
=\frac{5x2x3}{1}
= 30[/tex]
D) [tex] \frac{11x18x33}{12x13x22}=
=\frac{9x33}{12x13}=
=\frac{9x11}{4x13}
=\frac{99}{52} [/tex]
Sper ca te-am ajutat ! :)
