What is 4/2 minus 1/5?

Here we will show you how to calculate 4/2 minus 1/5. We will give you the answer in fraction form and in decimal form.
We label the numbers in 4/2 minus 1/5 like this:
4/2 - 1/5 = A/B - C/D
We will use a formula that does not require you to find the lowest common denominator to find the solution. The formula is:
(AD - BC) / BD
When we fill in 4/2 minus 1/5 into the formula above, we get:
(4x5 - 2x1) / 2x5
(20 - 2) / 10
18/10
Thus, the answer to 4/2 minus 1/5 (simplified if necessary) in fraction form is as follows:
1 4/5
To get the answer to 4/2 minus 1/5 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
18 / 10 = 1.8
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.