Вычислите (12 5/22+7 17/22)-(13 7/23- 9 25/23). Created by Marinka121. matematika-ru

Ответ:Пошаговое объяснение:

23)...

Marinka121 @Marinka121

August 2022 1 8 Report

Вычислите (12 5/22+7 17/22)-(13 7/23- 9 25/23)

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Ответ:

$16\frac{18}{23}$

Пошаговое объяснение:

$(12\frac{5}{22}+7\frac{17}{22})-(13\frac{7}{23}-9\frac{25}{23})$

$1) 12\frac{5}{22}+7\frac{17}{22}=19+\frac{5+17}{22}= 19+\frac{22}{22}=19+1=20$

$2) 13\frac{7}{23}-9\frac{25}{23}=13\frac{7}{23}-10\frac{2}{23}=3+\frac{7-2}{23}=3\frac{5}{23}$

$3) 20-3\frac{5}{23}=17-\frac{5}{23}=16+\frac{23}{23}-\frac{5}{23}=16+\frac{23-5}{23}=16\frac{18}{23}$

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