Use visual fraction models to add and subtract fractions with the same denominators.

When the denominators are the same, add the numerators. Sometimes the final answer can be simplified. close simplify (a fraction)To reduce a fraction to its simplest form, also known as its lowest ...

Find Ms. Askew's division mistake, then compare fractions that have the same numerator.

When learning to add fractions there’s a standard method they teach you in school: Make the denominator the same, and whatever you times the denominator by, also multiply the numerator by. You add the ...

How to subtract fractions When subtracting fractions, the denominators still needs to be the same before you start the calculation. This time, subtract one numerator from the other.

There's a helpful shortcut worth remembering: if your fractions already share the same denominator, you can skip straight to adding or subtracting the numerators. No LCD hunting required.

To generalize, once you’ve converted the dividend and divisor to fractions with the same denominator, all you need to do to find the quotient is divide the numerator of the dividend by the ...

The common denominator model, while not really a picture, demonstrates that the same rules apply to multiplication and division with fractions. It also shows why “invert and multiply” works.

Learn activities for third grade math to prepare for school. Teach your children 3rd grade math skills like fractions, multiplication tables and division.