how do you add 2\frac { 1} { 2} + 2\frac { 2} { 3}212+223?

1 Answer

See below.

Explanation:

First, the numbers must be changed to an improper fraction, meaning that there are no whole numbers. I am going to demonstrate how to do this with the 2 1/2212.

Step 1: To start off, you must multiply the denominater

2 1/color(red)2212

by the whole number

color(blue)2 1/color(red)2212

to get the equation color(blue)2*color(red)222, which equals 44.

Step 2: Now, you must add the number we just got

color(green)44

to the numerator

2 color(teal)1/2212

getting the equation color(green)4+color(teal)14+1, which equals 55. Now that 5, becomes our numerator, but the denominater stays the same, which leaves us with the improper fraction of 5/252.

You can now do the same thing with the other fraction, resulting in the equation 5/2+8/352+83.

The next step to solve this problem is to change the denominators so that they are common, or the same number. The first common number they have, is 66, since 2*3=623=6 and 3*2=632=6.

Since 2 (the denominater) has to be multiplied by 3 to get to 6, 5 (the numerator) must also be multiplied by 3.

(5*3)/ (2*3)5323

This results in the fraction of 15/6156.

Now, in the other fraction, since 3 (denominater) must be multiplied by 2 to get 6, 8 (the numerator) must also be multiplied by 2.

(8*2)/(3*2)8232

This results in the fraction of 16/6166.

Now that the denominaters are the same, the numerators must be added to complete the problem.

15+16=3115+16=31

That is your new numerator, which is put over the common denominater of 6, to get 31/6316.