What is 1/5 minus 2/8?
Here we will show you how to calculate 1/5 minus 2/8. We will give you the answer in fraction form and in decimal form.
We label the numbers in 1/5 minus 2/8 like this:
1/5 - 2/8 = 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 1/5 minus 2/8 into the formula above, we get:
(1x8 - 5x2) / 5x8
(8 - 10) / 40
-2/40
Thus, the answer to 1/5 minus 2/8 (simplified if necessary) in fraction form is as follows:
-1/20
To get the answer to 1/5 minus 2/8 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
-2 / 40 = -0.05
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.