Respuesta :

SUG4RD0LL

Answer:

3/7

Step-by-step explanation:

Lets assume the unknown number is x. x+4 5/7=12x

to get all your variables on one side, subtract x.

4 5/7=11n

Since mixed numbers are useless here, convert it to a improper fraction. 33/7=11x

Then, divide both sides by 11.

33/7÷11=3/7

11x÷11=x

x=3/7