Find common factors in two expressions

Is there some function so I can find a common factor in multiple expressions?

For example: syms x y

a= 5*(x^4/y)

b= 27*(x^4/y)

=> x^4/y is a common factor.

The reason I'm asking this is that I have some very long expressions I need to sum up. In order to shorten some stuff I would like to extract common factors and assign them to some variable. Thankful for any help!

Answer 1

[Ameer Hamza]

syms x y
a = 5*(x^4/y);
b = 27*(x^4/y);
common_factor = gcd(a,b);

Result:

>> common_factor
common_factor =
x^4/y

[John Miller]

Thank you!

[Ameer Hamza]

I am glad to be of help!