What is 5/8 minus 7/8?

Here we will show you how to calculate 5/8 minus 7/8. We will give you the answer in fraction form and in decimal form.
We label the numbers in 5/8 minus 7/8 like this:
5/8 - 7/8 = 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 5/8 minus 7/8 into the formula above, we get:
(5x8 - 8x7) / 8x8
(40 - 56) / 64
-16/64
Thus, the answer to 5/8 minus 7/8 (simplified if necessary) in fraction form is as follows:
-1/4
To get the answer to 5/8 minus 7/8 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-16 / 64 = -0.25
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.