ANSWERS:

Not

same

least common denominator

There are several ways to find the common denominator, but the easiest way is simply to

multiply the denominators together as in this example:

Let's try adding

1

+1

2

3

2 3 = 6 Lowest common denominator is

.

Now that you have 6 as the lowest common denominator, you must change the two numerators

(1 + 1) to sixths.

You make this change by multiplying both numerator and denominator by the same number, so

that the fraction will keep its se value.

To change 1 to sixths, multiply both numerator and denominator by 3:

2

1

x

3

=3

2

3

6

To 1 change to sixths, multiply both by 2:

3

1

x

2

=2

3

2

6

You can now add the fractions, because they have the same denominator.

2

+2

=5

6

6

6

54

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