What is 9/8 minus 4/1?
Here we will show you how to calculate 9/8 minus 4/1. We will give you the answer in fraction form and in decimal form.
We label the numbers in 9/8 minus 4/1 like this:
9/8 - 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 9/8 minus 4/1 into the formula above, we get:
(9x1 - 8x4) / 8x1
(9 - 32) / 8
-23/8
Thus, the answer to 9/8 minus 4/1 (simplified if necessary) in fraction form is as follows:
-2 7/8
To get the answer to 9/8 minus 4/1 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-23 / 8 = -2.875
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.