Question

Вычисли............,. . . ​

Answer 1

Ответ:

1) 17/4 = 4 целых 1/4; 2) =2; 3) 8/5 = 1 целая 3/5

Answer 2

Пошаговое объяснение:

1)$\frac{12\frac{4}{5} *3\frac{3}{4}-4\frac{4}{11}*4\frac{1}{8}}{11\frac{2}{3}*2\frac{4}{7}:4\frac{1}{4}}=\frac{\frac{64}{5}*3\frac{3}{4}-\frac{48}{11}*4\frac{1}{8}}{\frac{35}{3}*\frac{4}{7}*\frac{1}{4}*\frac{1}{2} }=\frac{\frac{16}{5}*3*3-\frac{6}{11}*4 }{\frac{5}{3}*\frac{1}{2} }=\frac{\frac{144}{5}-\frac{24}{11} }{\frac{5}{6} }=\frac{\frac{1464}{55} }{\frac{5}{6} } =\frac{8784}{275}=31\frac{259}{275}$

2)$\frac{9\frac{4}{5}:4\frac{2}{3}+3\frac{1}{3}:1\frac{1}{3} }{5\frac{3}{4}:2\frac{1}{2} }=\frac{\frac{49}{5}*\frac{1}{4}*\frac{2}{3}+\frac{10}{3}*\frac{1}{3} }{\frac{23}{4}*\frac{1}{2}*\frac{1}{2} }=\frac{\frac{49}{5}*\frac{1}{2}*\frac{1}{3}+\frac{10}{9} }{\frac{23}{16} }=\frac{\frac{49}{30}+\frac{10}{9} }{\frac{23}{16} }=\frac{\frac{247}{90} }{\frac{23}{16} } =\frac{1976}{1035} =1\frac{941}{1035}$

3)$\frac{(1\frac{1}{2}+2\frac{2}{3}+3\frac{3}{4} )*3\frac{3}{5} :2\frac{1}{2} }{14-15\frac{1}{8} :2\frac{1}{5} }=\frac{((1+2+3)+(\frac{1}{2} +\frac{2}{3} +\frac{3}{4}))*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{14-\frac{121}{8}*\frac{1}{2}*\frac{1}{5} }=\frac{(6+\frac{23}{12})*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{14-\frac{121}{80} }=\frac{(6+1\frac{11}{12} )*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} }=\frac{(6+1+\frac{11}{12})*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} }=$$\frac{(7+\frac{11}{12})*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} }=\frac{7\frac{11}{12}*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} } =\frac{\frac{95}{12}*3\frac{3}{5} *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} }=\frac{\frac{19}{4} *3 *\frac{1}{2}*\frac{1}{2} }{\frac{999}{80} }=\frac{\frac{57}{16} }{\frac{999}{80} }=\frac{95}{333}$