What is 1/4 plus 3/9?

Here we will show you how to calculate 1/4 plus 3/9. We will give you the answer in fraction form and in decimal form.

We label the numbers in 1/4 plus 3/9 like this:

1/4 + 3/9 = A/B + C/D

We will use an adding fractions formula that does not require you to find the lowest common denominator to get the answer. The adding fractions formula is:

(AD + BC) / BD

When we fill in 1/4 plus 3/9 into the formula above, we get:

(1x9 + 4x3) / 4x9
(9 + 12) / 36
21/36

Thus, the answer to 1/4 plus 3/9 (simplified if necessary) in fraction form is as follows:

7/12

To get the answer to 1/4 plus 3/9 in decimal form, we simply divide the numerator by the denominator from our fraction answer:

21 / 36 = 0.5833

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