What is 1/7 minus 5/8?

Here we will show you how to calculate 1/7 minus 5/8. We will give you the answer in fraction form and in decimal form.
We label the numbers in 1/7 minus 5/8 like this:
1/7 - 5/8 = 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 1/7 minus 5/8 into the formula above, we get:
(1x8 - 7x5) / 7x8
(8 - 35) / 56
-27/56
Thus, the answer to 1/7 minus 5/8 (simplified if necessary) in fraction form is as follows:
-27/56
To get the answer to 1/7 minus 5/8 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-27 / 56 = -0.4821
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.