Предмет: Математика, автор: nikstrokolism

на пошив сорочки ушло 2.6 м купленной ткани, а на пошив пододеяльника 9.1 м ткани. Во сколько раз больше ткани пошло на пододеяльник, чем на сорочку?Какая часть всей ткани пошла на сорочку?

Ответы

Автор ответа: uh19

2.6 + 9.1 = 11.7м всего ткани
9.1 : 2.6 = 3.5 м во столько больше ткани ушло на пододеяльник
2.6 : 11,7= $displaystyle frac{2.6}{11.17} = frac{2}{9}$

I---------------I----------------------I
_____2.6__I ____9.1_______
___________11.7__________

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