Question

Помогите !!! Срочно !!!

Answer 1

10) три четвёртых
11) три четвёртых

Answer 2

$4 frac{1}{2} :6= frac{9}{2} * frac{1}{6} = frac{9}{12} = frac{3}{4}$
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$5 frac{1}{4} :7= frac{21}{4} * frac{1}{7} = frac{3}{4}$
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$5 frac{1}{7} :12= frac{36}{7} * frac{1}{12} = frac{3}{7}$
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$6 frac{1}{2} :1 frac{6}{7} = frac{13}{2} : frac{13}{7} = frac{13}{2} * frac{7}{13} = frac{7}{2} =3 frac{1}{2}$
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$6 frac{2}{3} :2 frac{7}{9} = frac{20}{3} : frac{25}{9} = frac{20}{3} * frac{9}{25} = frac{12}{5} =2 frac{2}{5}$