Question

Me pueden ayudar con estas operaciones

Answer 1

Respuesta:

1). (3/7) (5/9) (-14/3) = -10/9

(3/7) (5/9) (-14/3)

= -1/7 * 5/9 * 14

= -5/9 * 2

= -10/9

2). (7/4) ÷ (5/16) ÷ (11/3) = 63/44

(7/4) ÷ (5/16) ÷ (11/3)

= 7/4 * 15/5 ÷ 11/3

= 7/4 * 15/5 * 3/11

= 7/4 * 3 * 3/11

= 63/44

1.1) 3 (12-19) + 5 (-18 ÷ 6) - (-4) (-5) = -56

3 (12-19) + 5 (-18 ÷ 6) - (-4) (-5)

= 3 * (-7) + 5 * (-3) + 4 * (-5)

= - 21 - 15 - 20

= - 56

2.2) [(-6 + 7/5) + (4/9)] ÷ (9/4) = -748/405

[(-6 + 7/5) + (4/9)] ÷ (9/4)

= [(-23/5) + (4/9)] ÷ 9/4

= [(-23/5) + (4/9)] * 4/9

= ( -23/5 + 4/9) * 4/9

= -187/45 * 4/9

= -748/405

3.3) [(4/5) ÷ (-3)] - [(5/8) (-2/9)] = -23/180

[(4/5) ÷ (-3)] - [(5/8) (-2/9)]

= - 4/15 + 5/8 * 2/9

= - 4/15 + 5/36

= 48/180 + 25/180

= - 48 + 25/180

= -23/180