What is 2/10 minus 8/9?
Here we will show you how to calculate 2/10 minus 8/9. We will give you the answer in fraction form and in decimal form.
We label the numbers in 2/10 minus 8/9 like this:
2/10 - 8/9 = 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 8/9 into the formula above, we get:
(2x9 - 10x8) / 10x9
(18 - 80) / 90
-62/90
Thus, the answer to 2/10 minus 8/9 (simplified if necessary) in fraction form is as follows:
-31/45
To get the answer to 2/10 minus 8/9 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-62 / 90 = -0.6889
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.