Question

Repedeee!!Îmi trebuie mâine meditații!!!Mulțumesc. ​

Answer 1

Explicație pas cu pas:

Exercițiul 2 :

a )

³) - 3/4 + ²) 5/6 =

- 9/12 + 10/12 = 1/12

b )

5/8 - ⁸) 2 =

5/8 - 16/8 = -11/8

c )

- 3/10 • ( - 15/9 ) =

- 1/2 • ( - 3/3 ) =

- 1/2 • ( - 1 ) = 1/2

d )

28/12 (⁴ - 35/15 (⁵ =

7/3 - 7/3 = 0

e )

2/3 : ( - 12 ) =

2/3 • ( - 1/12 ) =

1/3 • ( - 1/6 ) = - 1/18

f )

- 5/3 + ³) 1 =

- 5/3 + 3/3 = - 2/3

g )

5/8 - ²) 3/4 =

5/8 - 6/8 = - 1/8

h )

2 : ( - 1/4 ) =

2 • ( - 4/1 ) =

2 • ( - 4 ) = - 8

i )

- 63/40 • 64/27 =

- 7/5 • 8/3 = - 56/15

j )

- 2/5 • 3 = - 6/5

k )

- 3/6 - 3/6 = - 6/6 (⁶ = - 1

l )

- 2/5 : 1/10 =

- 2/5 • 10/1 =

- 2/1 • 2 = - 4/1 = - 4