tolong di jawab tina456

1. 8/3:4/9÷15/9=8/3×9/4×9/15=648/180
2. 2/3:5/2-3/5×9/7=2/3×2/5-3/5×9/7
=36/105-3/5=
3.8/3×(3/2+4/5)=8/3×(15/10+8/10)
=8/3×23/10
=184/30

[tex]2 \frac{2}{3} : \frac{4}{9} x 1 \frac{6}{9} = \frac{8}{3} x \frac{9}{4} x \frac{15}{9} = \frac{8}{3} x \frac{15}{4} = 2 x 5 = 10[/tex]

[tex]1 \frac{2}{3} : 2 \frac{1}{2} - \frac{3}{5} x 1 \frac{2}{7} = \frac{5}{3} : \frac{5}{2} -\frac{3}{5}x \frac{9}{7}= \frac{5}{3} x \frac{2}{5} - \frac{3}{5} x \frac{9}{7} = \frac{2}{3} - \frac{27}{35}= \frac{70}{105}- \frac{81}{105} = \frac{-9}{105} = \frac{-3}{35}[/tex] 


[tex]2 \frac{2}{3} x (1 \frac{1}{2} + \frac{4}{5} = \frac{8}{3} x \frac{3}{2} + \frac{8}{3} x = \frac{4}{5} = 4 +  5 = \frac{32}{15} = 4 + 2 \frac{2}{15}[/tex]