4 2/15 - 3 1/9x = 1 4/5

Question

Математика

Паллада

4 октября, 11:06

4 2/15 - 3 1/9x = 1 4/5

+5

Ответы (2)

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Меля · Answer 1

3 1/9 х = 4 2/15 - 1 4/5; 3 1/9 х=4 2/15 - 1 12/15; х = 2 5/15=2 1/3; 28/9 х=7/3; х = 7/3 * 9/28; х = 3/4

Аня · Answer 2

4 2/15 - (3 1/9) x = 1 4/5;

(3 1/9) x = 4 2/15 - 1 4/5;

(28/9) x = 4 2/15 - 1 12/15;

(28/9) x = 62/15 - 27/15;

(28/9) x = 35/15;

(28/9) x = 7/3;

x = (7/3) : (28/9) ;

x = (7/3) * (9/28) ;

x = 3/4;