tolong dijawab yg aku buletin plisss

[tex]1. c. \frac{2}{25} : \frac{6}{10} : \frac{5}{9} = \frac{2}{25} . \frac{10}{6} . \frac{9}{5} = \frac{6}{25}[/tex][tex]

d. 1 \frac{1}{2} : 2 \frac{2}{3} : 3 \frac{3}{4} = \frac{3}{2} : \frac{8}{3} : \frac{15}{4} = \frac{3}{2} . \frac{3}{8} . \frac{4}{15} = \frac{3}{20} [/tex]

[tex]2. \\ b. 2 \frac{2}{3} . ( 1\frac{1}{2} + \frac{4}{5} ) = \frac{8}{3} . ( \frac{3}{2} + \frac{4}{5}) = \frac{8}{3} . \frac{23}{10} = \frac{92}{15} [/tex]

[tex]c. \frac{1}{2} . 1 \frac{1}{3} + \frac{2}{9} : \frac{10}{6} = (\frac{1}{2} . \frac{4}{3} ) + ( \frac{2}{9} . \frac{6}{10}) = \frac{2}{3} + \frac{2}{15} = \frac{10 + 2}{15} = \frac{12}{15} = \frac{4}{5} [/tex]

[tex]d. \frac{12}{3} : 2 \frac{1}{2} - \frac{3}{5} . 1 \frac{2}{7} = (\frac{12}{3} : \frac{3}{2}) - ( \frac{3}{5} . \frac{9}{7}) = (\frac{12}{3} . \frac{2}{3}) - ( \frac{3}{5} . \frac{9}{7}) = \frac{8}{3} - \frac{27}{35}[/tex][tex]= \frac{280-81}{105} = \frac{199}{105} = 1 \frac{94}{105} [/tex]