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# Subtracting Mixed Numbers-Regrouping Method

## When should you regroup or borrow when subtracting mixed numbers ?

**Keywords: Subtracting mixed numberss | Regrouping| Borrowing | | Numbers| | Subtraction | Subtracting mixed numbers with unlike denominators |**

When subtracting mixed numbers you can regroup by borrowing from the whole number when the top fraction is less than the bottom fraction.

**Step 1.** Find a common denominator if the denominators are unlike.

**Step 2.** If the top fraction is smaller than the bottom fraction you need to regroup (borrow).

**Step 3.** Take one away from the whole number, then add the denominator to the numerator to get your new numerator.

For example 4 1/3 – 2 2/3 becomes 3 4/3 – 2 2/3 after regrouping.

If you're subtracting from a whole number from a mixed number, regrouping will help.

Take one away from the whole number, use the same denominator

of the bottom fraction.

This number will also be your numerator because a number over itself equals one whole.

For example: ** 17 – 5 1/6 **

After regrouping you will have **16 6/6 – 5 1/6**