70/350 = 20%
A fraction like 70/350, or 20%, can show up in everyday life when one-fifth of a group or amount is involved. For example, 20% of a class might be absent, or a store might offer 20% off a jacket.
To picture 20% quickly, imagine dividing something into five equal parts and focusing on one part. It is more than 10% but less than half, so it represents a noticeable portion without being close to most of the whole.
A common mistake is to think 20% means 20 items no matter how large the total is. The actual number of items depends on the whole amount, while the percentage stays the same.