Question

Va rig ajutati ma , rate o urgenta, Maine am va asculta din aceste exerciții

Answer 1

Răspuns:

Explicație pas cu pas:

a)

(-4/3)*(-5/8 + 1/4) = (-4/3)*(-5/8 + 2/8) = (-4/3)*(-3/8) = 1/2

b)

37/25 *(7/5 - 3/20) = 37/25 * (28/20 - 3/20) = 37/25 * 25/20 = 37/20

c)

-5/2 * (-1/2 - 3/5) = -5/2 * (-5/10 - 6/10) = -5/2 * -11/10 = 11/4

d)

0,75 =75/100 = 3/4

3/4 * (-7/3 - 5/6) = 3/4 * (-14/6 - 5/6) = 3/4 * -19/6 = -19/8

e)

2,25 = 225/100 = 9/4

9/4 * (-1/7 + 1/21) = 9/4 * (-3/21 + 1/21) = 9/4 * -2/21 = - 9/42 = -3/14

f)

1,1 = 11/10

11/10 * (3/11 - 1/22) = 11/10 * (6/22 - 1/22) = 11/10 * 5/22 = 1/4