decrease 5m by 20%

To decrease 5m by 20%, you need to calculate 20% of 5m and subtract it from the original value.

20% of 5m is (20/100) * 5m = 1m.

So, to decrease 5m by 20%, you subtract 1m from 5m.

5m - 1m = 4m.

Therefore, the result is 4m.

To decrease 5m by 20%, you can follow these steps:

Step 1: Convert 20% to decimal form by dividing it by 100:
20% ÷ 100 = 0.20

Step 2: Multiply 5m by 0.20:
5m × 0.20 = 1m

Step 3: Subtract the obtained value from 5m:
5m - 1m = 4m

Therefore, decreasing 5m by 20% gives you 4m.