IXL | Add and subtract fractions with unlike denominators | 5th grade math

or

Subtract.

3

4

–

13

20

=

ref_doc_title.

or

Learn with an example

question

Add.

9

20

+

1

10

=

key idea

Use a common denominator to add or subtract fractions.

solution

You can use 20 as the common denominator.

Multiply the numerator and the denominator of

1

10

by 2 to find an equivalent fraction.

1 × 2

10 × 2

=

2

20

Now add the fractions. Add the numerators and keep the denominators the same.

9

20

+

2

20

=

11

20

Looking for more? Try these:

Lesson: Adding fractions with unlike denominators

Lesson: Subtracting fractions with unlike denominators

or

$Confetti$

Excellent!

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Teacher tools

Work it out

Not feeling ready yet? These can help:

L.3Add fractions with unlike denominators

L.5Subtract fractions with unlike denominators

Lesson: Adding fractions with unlike denominators

Lesson: Subtracting fractions with unlike denominators