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Автор - jhufgygfy

помогите пожалуйста номер 573 пункт 2

Ответ

Автор - jekadva
10 frac{1}{2} +9 frac{1}{4} =10 frac{2}{4} +9 frac{1}{4} =19 frac{3}{4} -сумма
10 frac{2}{4} -9 frac{1}{4} =1 frac{1}{4} -разность
19 frac{3}{4} *1 frac{1}{4} = frac{79}{4} * frac{5}{4} = frac{395}{16} =24 frac{11}{16} -произведение

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