Question

3 1/2+3 4/15:(2 7/12-2/15)×1 1/8

Answer 1

Ответ:

$3\frac{1}{2}+3\frac{4}{15} :(2\frac{7}{12} -\frac{2}{15} )*1\frac{1}{8} =\\\frac{7}{2}+\frac{49}{15} :(\frac{31}{12} -\frac{2}{15} )*\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} :(\frac{155}{60} -\frac{8}{60} )*\frac{9}{8}=\\\frac{105}{30} +\frac{98}{30}:\frac{147}{60} *\frac{9}{8} =\\\frac{105}{30} +\frac{98}{30} *\frac{60}{147} *\frac{9}{8} =\\\frac{105 }{30} +98*\frac{2}{147} *\frac{9}{8} =$

$\frac{105 }{30} +2*\frac{2}{3} *\frac{9}{8} =\\\frac{105}{30} +2*\frac{3}{4} =\\\frac{105}{30} + \frac{3}{2} =\\\frac{105}{30} +\frac{45}{30} =\\\frac{150}{30} =5$