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Grade-5
Adding Fractions With Unlike Denominators
Practice Preview
Add and write the simplified fraction :
4
12
+
1
6
Explanation
Remember, we cannot add fractions until the denominators are same. So, we have to find the least common denominator.
Least Common Denominator (LCD) of 12 and 6 is 12.
Now, we have to make sure both fractions have the same new denominator 12.
You can write fraction
4
12
as
4x1
12x1
=
4
12
You can write fraction
1
6
as
1x2
6x2
=
2
12
Now, both fractions have same denominator and we are ready to add
4
12
+
2
12
=
4+2
12
=
6
12
That can be simplified to
=
1
2
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