Answer:
The answer is 1:4
Step-by-step explanation:
To find the simple form, simply find the largest common factor for 20 and 5. 5's is 5. Note that 20's must be 5 because we cannot go any higher. Remember, 5's highest factor is 5, so we cannot go any higher. Next divide both sides by 5. This gives us 1:4. Can we go higher? No, so this is our final answer.
