What is 10/8 minus 9/4?
Here we will show you how to calculate 10/8 minus 9/4. We will give you the answer in fraction form and in decimal form.
We label the numbers in 10/8 minus 9/4 like this:
10/8 - 9/4 = 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 10/8 minus 9/4 into the formula above, we get:
(10x4 - 8x9) / 8x4
(40 - 72) / 32
-32/32
Thus, the answer to 10/8 minus 9/4 (simplified if necessary) in fraction form is as follows:
-1
To get the answer to 10/8 minus 9/4 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-32 / 32 = -1
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.