What is 9/7 minus 3/9?
Here we will show you how to calculate 9/7 minus 3/9. We will give you the answer in fraction form and in decimal form.
We label the numbers in 9/7 minus 3/9 like this:
9/7 - 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 9/7 minus 3/9 into the formula above, we get:
(9x9 - 7x3) / 7x9
(81 - 21) / 63
60/63
Thus, the answer to 9/7 minus 3/9 (simplified if necessary) in fraction form is as follows:
20/21
To get the answer to 9/7 minus 3/9 in decimal form, we simply divide the numerator by the denominator from our fraction answer:
60 / 63 = 0.9524
Note: The fraction answer is exact, but the answer in decimal format is rounded to the nearest 4 decimals if necessary.