Найдите значение числового выражения:
а) $(8\frac{7}{12} - 2\frac{17}{36}) * 2,7 - 4\frac{1}{3} : 0,65$;
б) $(1\frac{11}{24} + \frac{13}{36}) * 1,44 - \frac{8}{15} * 0,5625$;
в) $(6\frac{8}{15} - 4\frac{21}{45}) * 4,5 - 2\frac{1}{6} : 0,52$;
г) $(\frac{9}{22} + 1\frac{12}{33}) * 1,32 - \frac{8}{13} * 0,1625$.
$(8\frac{7}{12} - 2\frac{17}{36}) * 2,7 - 4\frac{1}{3} : 0,65 = (8\frac{21}{36} - 2\frac{17}{36}) * 2,7 - 4\frac{1}{3} : \frac{65}{100} = 6\frac{1}{9} * 2,7 - \frac{13}{3} : \frac{13}{20} = \frac{55}{9} * \frac{27}{10} - \frac{13}{3} * \frac{20}{13} = \frac{11}{1} * \frac{3}{2} - \frac{1}{3} * \frac{20}{1} = \frac{33}{2} - \frac{20}{3} = \frac{99}{6} - \frac{40}{6} = \frac{59}{6} = 9\frac{5}{6}$
$(1\frac{11}{24} + \frac{13}{36}) * 1,44 - \frac{8}{15} * 0,5625 = (1\frac{33}{72} + \frac{26}{72}) * \frac{144}{100} - \frac{8}{15} * \frac{5625}{10000} = 1\frac{59}{72} * \frac{36}{25} - \frac{1}{1} * \frac{375}{1250} = \frac{131}{72} * \frac{36}{25} - \frac{3}{10} = \frac{131}{2} * \frac{1}{25} - \frac{3}{10} = \frac{131}{50} - \frac{15}{50} = \frac{116}{50} = \frac{232}{100} = 2,32$
$(6\frac{8}{15} - 4\frac{21}{45}) * 4,5 - 2\frac{1}{6} : 0,52 = (6\frac{24}{45} - 4\frac{21}{45}) * \frac{45}{10} - \frac{13}{6} : \frac{52}{100} = 2\frac{1}{15} * \frac{9}{2} - \frac{13}{6} : \frac{13}{25} = \frac{31}{15} * \frac{9}{2} - \frac{13}{6} * \frac{25}{13} = \frac{31}{5} * \frac{3}{2} - \frac{1}{6} * \frac{25}{1} = \frac{93}{10} - \frac{25}{6} = \frac{279}{30} - \frac{125}{30} = \frac{154}{30} = \frac{77}{15} = 5\frac{2}{15}$
$(\frac{9}{22} + 1\frac{12}{33}) * 1,32 - \frac{8}{13} * 0,1625 = (\frac{27}{66} + 1\frac{24}{66}) * \frac{132}{100} - \frac{8}{13} * \frac{1625}{10000} = 1\frac{17}{22} * \frac{33}{25} - \frac{8}{13} * \frac{13}{80} = \frac{39}{22} * \frac{33}{25} - \frac{1}{1} * \frac{1}{10} = \frac{39}{2} * \frac{3}{25} - \frac{1}{10} = \frac{117}{50} - \frac{5}{50} = \frac{112}{50} = \frac{224}{100} = 2,24$
Пожауйста, оцените решение
