What is 7/7 minus 9/8?
Here we will show you how to calculate 7/7 minus 9/8. We will give you the answer in fraction form and in decimal form.
We label the numbers in 7/7 minus 9/8 like this:
7/7 - 9/8 = 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 7/7 minus 9/8 into the formula above, we get:
(7x8 - 7x9) / 7x8
(56 - 63) / 56
-7/56
Thus, the answer to 7/7 minus 9/8 (simplified if necessary) in fraction form is as follows:
-1/8
To get the answer to 7/7 minus 9/8 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-7 / 56 = -0.125
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.