Question

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Answer 1

Explicación paso a paso:

11. 4/5 x 7/2 = 14/5

4/5 x 14/15 =56/75

4/5 x -1/2 = -2/5

-2/7 x 7/2 = -1

-2/7 x 14/15 = - 28/105

-2/7 x -1/2 = 2/14

12.CALCULAR AxB

A= 20/15 = 4/3

B= 108/36 = 3

entonces

AxB = 4/3 . 3

AxB = 4

a) 4

13. (23/7) x(5/23) x (13/10) =

65/70 = 13/14

d) 13/14

14. A = 220/80= 22\8 =11/4

B =390/ 2730 = 39/273 =1/7

(11 x 1)/4 x 7= 11/28

AxB = (11 x 1)/(4 x 7)= 11/28

15 .

c) -3/50