Answer:
The fraction is = 
Step-by-step explanation:
In simplest form the fraction is represented in mixed number as
.
The fraction form of the mixed number can be given as :

Let the fraction be =
[As multiplying same numbers to numerator and denominator does not affect the proportion.
Sum of numerator and denominator is = 30
This, can be represented as:

Solving for
.

Dividing both sides by 10.


So, the fraction will be = 
⇒ 
Answer: i think it is.
you cant divide both numbers by the same number
Step-by-step explanation:
Answer:
x = 45
Step-by-step explanation:
x and 3x are adjacent angles and the form a straight line. Their sum will be 180 degrees
x +3x = 180
Combine like terms
4x = 180
Divide each side by 4
4x/4 = 180/4
x =45