Dividing monomials:

1. x²y³/xy²

2. 9a⁵b³/3a³b²

3. 4xyz/2xyz

4. 20a⁶b⁷c⁴/5a⁶b⁵c³

5. 10x²y⁴ + 4x³y⁵/5xy³
Please help me :(((