Автор - Linbergoffnik

Помоги за одно легкое задание даю 35 баллов.

Ответ

Автор - Reideen

 frac{2}{3}  div  frac{1}{12}  =  frac{2}{3}  times  frac{12}{1}  = 8

 frac{8}{9}  div  frac{9}{10}  =  frac{8}{9}  times  frac{10}{9}  =  frac{80}{81}

 frac{15}{22}  div  frac{5}{33}  =  frac{15}{22}  times  frac{33}{5}  =  frac{9}{2}  = 4 frac{1}{2}

4 div  frac{2}{3}  = 4 times  frac{3}{2}  = 6

3 div 1 frac{1}{2}  = 3 div  frac{3}{2}  = 3 times  frac{2}{3}  = 2

1 frac{1}{2}  div 2 frac{1}{2} =  frac{3}{2}   div  frac{5}{2}  =  frac{3}{2}  times  frac{2}{5}  =  frac{3}{5}

Ответ

Автор - Olga8128

frac{2}{3} : frac{1}{12} = frac{2}{3} *frac{12}{1} = frac{2*12}{3*1} = frac{24}{3} = 8.\\frac{8}{9} : frac{9}{10} = frac{8*10}{9*9} = frac{80}{81}.\\ frac{15}{22} :frac{5}{33} = frac{15*33}{22*5} = frac{5*3*11*3}{11*2*5} = frac{9}{2} = 4frac{1}{2} .\\4:frac{2}{3} = frac{4*3}{1*2} = frac{12}{2} = 6.\\3:1frac{1}{2} = 3:frac{3}{2} = frac{3*2}{1*3} = 2.\\1frac{1}{2} :2frac{1}{2} = frac{3}{2} :frac{5}{2} = frac{3*2}{5*2}=frac{3}{5}.

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