Question

ALGUEM FAZ PURFAVOR EU PRECISO URGENTE

a) ( +1/3 ) + (+ 1/5 ) =
b) (3/4) + (1/2)
c) (-2/4) + (-2/3 )=
d) (-2/5 ) + ( + 3/ 10 ) =
e) ( + 5/3) + (-1/6 ) =
f) (( 514 ) - (1/2)
g) (3/5) - (-2/7 ) =
h) ( + 8 / 10 ) - ( + 1/5 ) =
i) ( + 5 / 6 ) - (-2/3 ) =
j) (-4/3)-(-1/2) =

Answer 1

Resposta:

a) 8/15; b) 5/4; c) -10/6; d) -1/10; e) 3/2; f) 3/4; g) 11/35; h) 3/5; i) 3/2; j) -5/6.

Explicação passo a passo:

a) (+1/3) + (+1/5) =

igualando os denominadores:

5/15 + 3/15 =

8/15.

b) (3/4) + (1/2) =

igualando os denominadores:

3/4 + 2/4 =

5/4.

c) (-2/4) + (-2/3) =

(-2/4) - 2/3 =

igualando os denominadores;

-6/12 - 8/12 =

-20/12 = -10/6.

d) (-2/5) + (+3/10) =

igualando os denominadores:

-4/10 + 3/10 =

-1/10.

e) (+5/3) + (-1/6) =

5/3 - 1/6 =

igualando os denominadores:

10/6 - 1/6 =

9/6 = 3/2.

f) (5/4) - (1/2) =

igualando os denominadores:

5/4 - 2/4 =

3/4.

g) (3/5) - (-2/7) =

3/5 - 2/7 =

igualando os denominadores:

21/35 - 10/35 =

11/35.

h) (+8/10) - (+1/5) =

8/10 - 1/5 =

igualando os denominadores:

8/10 - 2/10 =

6/10 = 3/5.

i) (+5/6) -(-2/3) =

5/6 + 2/3 =

igualando os denominadores:

5/6 + 4/6 =

9/6 = 3/2.

j) (-4/3) - (-1/2) =

-4/3 + 1/2 =

igualando os denominadores:

-8/6 + 3/6 =

-5/6.