What is 5/7 plus 2/8?

Here we will show you how to calculate 5/7 plus 2/8. We will give you the answer in fraction form and in decimal form.

We label the numbers in 5/7 plus 2/8 like this:

5/7 + 2/8 = 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 5/7 plus 2/8 into the formula above, we get:

(5x8 + 7x2) / 7x8
(40 + 14) / 56
54/56

Thus, the answer to 5/7 plus 2/8 (simplified if necessary) in fraction form is as follows:

27/28

To get the answer to 5/7 plus 2/8 in decimal form, we simply divide the numerator by the denominator from our fraction answer:

54 / 56 = 0.9643

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