Question

4 7/10 + 6/8 Fractions please help cant solve. used two methods but answer isnt the same as the answer page from the book

Answer 1

First, you have to find the common denominator.

It is 40.

But if we change the denominator, you have to change the numerator as well.

We multiplied 10 by 4 to get to 40, so we multiply 7 by 4.

`(28)/(40)`

We multiplied 8 by 5 to get to 40, so we do the same to 6:

`(30)/(40)`

Now add them:

`(28)/(40) +(30)/(40)`

We get:

58/40

1+18/40 is my answer...

Answer 2

5 9/20

Explanation:

4 7/10 + 6/8

Simplify the fractions by dividing the second top and bottom by 2

4 7/10 + 3/4

Getting a common denominator of 20

4 7/10 *2/2 + 3/4 * 5/5

4 14/20 + 15/20

4 29/20

4 + 20/20 + 9/20

4+1+9/20

5 9/20