Ответ:
[tex]3\frac{1}{2}+3\frac{4}{15} :(2\frac{7}{12} -\frac{2}{15} )*1\frac{1}{8} =\\\frac{7}{2}+\frac{49}{15} :(\frac{31}{12} -\frac{2}{15} )*\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} :(\frac{155}{60} -\frac{8}{60} )*\frac{9}{8}=\\\frac{105}{30} +\frac{98}{30}:\frac{147}{60} *\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} *\frac{60}{147} *\frac{9}{8} =\\\frac{105 }{30} +98*\frac{2}{147} *\frac{9}{8} =\\[/tex]
[tex]\frac{105 }{30} +2*\frac{2}{3} *\frac{9}{8} =\\\frac{105}{30} +2*\frac{3}{4} =\\\frac{105}{30} + \frac{3}{2} =\\\frac{105}{30} +\frac{45}{30} =\\\frac{150}{30} =5[/tex]
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Ответ:
[tex]3\frac{1}{2}+3\frac{4}{15} :(2\frac{7}{12} -\frac{2}{15} )*1\frac{1}{8} =\\\frac{7}{2}+\frac{49}{15} :(\frac{31}{12} -\frac{2}{15} )*\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} :(\frac{155}{60} -\frac{8}{60} )*\frac{9}{8}=\\\frac{105}{30} +\frac{98}{30}:\frac{147}{60} *\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} *\frac{60}{147} *\frac{9}{8} =\\\frac{105 }{30} +98*\frac{2}{147} *\frac{9}{8} =\\[/tex]
[tex]\frac{105 }{30} +2*\frac{2}{3} *\frac{9}{8} =\\\frac{105}{30} +2*\frac{3}{4} =\\\frac{105}{30} + \frac{3}{2} =\\\frac{105}{30} +\frac{45}{30} =\\\frac{150}{30} =5[/tex]