Question

resolver las dos siguientes ecuaciones:

a ) 2/8 + 1/4 = 1/2 - Z

b) m- 1/7 = 3/5

Answer 1

a) 2/8 + 1/4 = 1/2 - Z

Z= - 2/8 - 1/4 +1/2 - - - >m.c.m = 8

Z= (- 2 - 1.(2) + 1.(4))/8

Z = (- 2-2+4)/8

Z = (- 4+4)/8

Z = 0/8

Z = 0


Comprobación:


2/8 +1/4 = 1/2 - 0

2+1.(2)/8 = 1/2

4/8 = 1/2

1/2 = 1/2 - - > Correcto.


b) m - 1/7 =3/5

m = 3/5 +1/7

m = (3.(7) + 1.(5))/35

m = (21+5)/35

m = 26/35


Comprobación:

26/35 - 1/7 = 3/5

(26 - 1.(5))/35 = 3/5

(26-5)/35 = 3/5

21/35 = 3/5

21÷7
------ = 3/5
35÷7

3/5 = 3/5 - - - > Correcto.

Saludos.