Subtracting Mixed Numbers with Regrouping

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction, such as 2 1/2.

Front

How do you subtract mixed numbers?

Back

To subtract mixed numbers, convert them to improper fractions, find a common denominator, and then subtract.

Front

What is regrouping in subtraction?

Back

Regrouping is the process of borrowing from the next highest place value to make subtraction easier.

Front

Convert 6 1/4 to an improper fraction.

Back

6 1/4 = 25/4.

Front

Convert 2 6/8 to an improper fraction.

Back

2 6/8 = 22/8.

Front

What is the first step in subtracting 6 1/4 - 2 6/8?

Back

Convert both mixed numbers to improper fractions.

Front

What is 25/4 - 22/8?

Back

First, convert 25/4 to 50/8. Then, 50/8 - 22/8 = 28/8 = 3 1/2.

Front

What is the result of 4 1/3 - 1 2/3?

Back

The result is 2 2/3.

Front

How do you find a common denominator for 1/3 and 2/3?

Back

The common denominator for 1/3 and 2/3 is 3.

Front

What is 7 3/15 - 3 4/5?

Back

The result is 3 2/5.