What is 2/5 minus 1/7?
Here we will show you how to calculate 2/5 minus 1/7. We will give you the answer in fraction form and in decimal form.
We label the numbers in 2/5 minus 1/7 like this:
2/5 - 1/7 = 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 1/7 into the formula above, we get:
(2x7 - 5x1) / 5x7
(14 - 5) / 35
9/35
Thus, the answer to 2/5 minus 1/7 (simplified if necessary) in fraction form is as follows:
9/35
To get the answer to 2/5 minus 1/7 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
9 / 35 = 0.2571
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.