What is 1/2 minus 3/10?
Here we will show you how to calculate 1/2 minus 3/10. We will give you the answer in fraction form and in decimal form.
We label the numbers in 1/2 minus 3/10 like this:
1/2 - 3/10 = 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 1/2 minus 3/10 into the formula above, we get:
(1x10 - 2x3) / 2x10
(10 - 6) / 20
4/20
Thus, the answer to 1/2 minus 3/10 (simplified if necessary) in fraction form is as follows:
1/5
To get the answer to 1/2 minus 3/10 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
4 / 20 = 0.2
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.