What is 1/2 minus 4/1?
Here we will show you how to calculate 1/2 minus 4/1. We will give you the answer in fraction form and in decimal form.
We label the numbers in 1/2 minus 4/1 like this:
1/2 - 4/1 = 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 1/2 minus 4/1 into the formula above, we get:
(1x1 - 2x4) / 2x1
(1 - 8) / 2
-7/2
Thus, the answer to 1/2 minus 4/1 (simplified if necessary) in fraction form is as follows:
-3 1/2
To get the answer to 1/2 minus 4/1 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-7 / 2 = -3.5
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.