What is 2/10 minus 8/1?
Here we will show you how to calculate 2/10 minus 8/1. We will give you the answer in fraction form and in decimal form.
We label the numbers in 2/10 minus 8/1 like this:
2/10 - 8/1 = 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 2/10 minus 8/1 into the formula above, we get:
(2x1 - 10x8) / 10x1
(2 - 80) / 10
-78/10
Thus, the answer to 2/10 minus 8/1 (simplified if necessary) in fraction form is as follows:
-7 4/5
To get the answer to 2/10 minus 8/1 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-78 / 10 = -7.8
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.