# How to perform modulus in polynomial rings..

The following code i wrote in cocalc.com in sage sheet

```
x = PolynomialRing(RationalField(), 'x').gen()
a = PolynomialRing(RationalField(), 'a').gen()
b = PolynomialRing(RationalField(), 'b').gen()
f =a* x/(x+1)
g = b*x**3/(x+1)
g1 = f%g
print g1
```

It is giving error. My main objective is to find quotient and remainder.Thanks in advance.

`f`

and`g`

are not polynomials but rational functions (with denominators), so what do you mean? What quotient and remainder do you expect?