What is 2/5 minus 2/9?
Here we will show you how to calculate 2/5 minus 2/9. We will give you the answer in fraction form and in decimal form.
We label the numbers in 2/5 minus 2/9 like this:
2/5 - 2/9 = 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 2/5 minus 2/9 into the formula above, we get:
(2x9 - 5x2) / 5x9
(18 - 10) / 45
8/45
Thus, the answer to 2/5 minus 2/9 (simplified if necessary) in fraction form is as follows:
8/45
To get the answer to 2/5 minus 2/9 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
8 / 45 = 0.1778
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.