Question

calcule o valor das expressões numéricas a) (2/5+1/5):(1/4+2/4) b) (2/3-1/3):(3/5-1/5)=​ me ajude pfvr

Answer 1

Resposta:

a) 3/5÷3/4=

3/5×4/3=

12/15=÷3=--4/5

b) 1/3÷2/5=

1/3×5/2=

5/6

Espero ter ajudado

Answer 2

Resposta:

a) 4/5; b) 5/6.

Explicação passo a passo:

a) (2/5 + 1/5) : (1/4 + 2/4) =

3/5 : 3/4 =

3/5 . 4/3 =

12/15 = 4/5.

b) (2/3 - 1/3) : (3/5 - 1/5) =

1/3 : 2/5 =

1/3 . 5/2 =

5/6.