Respuesta :

5/4 , x , 7/4

Then

7/4 - 5/4 = (7-5)/4 = 2/4 = 1/2

Now divide 2/4÷2= 2/8= 1/4

Next step add

5/4 + 1/4 = 6/4 = 3/2

Answer is fraction 6/4= 3/2