What is 4/7 minus 3/9?
Here we will show you how to calculate 4/7 minus 3/9. We will give you the answer in fraction form and in decimal form.
We label the numbers in 4/7 minus 3/9 like this:
4/7 - 3/9 = 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 4/7 minus 3/9 into the formula above, we get:
(4x9 - 7x3) / 7x9
(36 - 21) / 63
15/63
Thus, the answer to 4/7 minus 3/9 (simplified if necessary) in fraction form is as follows:
5/21
To get the answer to 4/7 minus 3/9 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
15 / 63 = 0.2381
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.