What is 8/10 minus 7/2?
Here we will show you how to calculate 8/10 minus 7/2. We will give you the answer in fraction form and in decimal form.
We label the numbers in 8/10 minus 7/2 like this:
8/10 - 7/2 = 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 8/10 minus 7/2 into the formula above, we get:
(8x2 - 10x7) / 10x2
(16 - 70) / 20
-54/20
Thus, the answer to 8/10 minus 7/2 (simplified if necessary) in fraction form is as follows:
-2 7/10
To get the answer to 8/10 minus 7/2 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-54 / 20 = -2.7
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.