2 1/4×3 7/9×5/6=berapa 9/4×34/9×5/6=berapa 1 7/10×5/34×2 2/3=berapa 8 : 4/7=berapa Tolong bantu ya

[tex]2 \frac{1}{4}\times3 \frac{7}{9}\times\frac{5}{6}=\frac{9}{4}\times\frac{34}{9}\times\frac{5}{6} =\frac{9\times34\times5}{4\times9\times6} =\frac{17\times5}{2\times6}= \frac{85}{12} [/tex]
yg nomer 2 sama dg yg nomer 1
[tex]1 \frac{7}{10}\times\frac{5}{34}\times2\frac{2}{3}=\frac{17}{10}\times\frac{5}{34}\times\frac{8}{3} =\frac{17\times5\times8}{10\times34\times3} =\frac{1\times1\times8}{2\times2\times3} = \frac{2}{3}[/tex]
8 : 4/7 = 8 x 7/4 = 2 x 7 = 14