Add and Subtract Fractions with Models

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What does it mean to add fractions?

Back

Adding fractions means combining the parts represented by the fractions. To add fractions with different denominators, find a common denominator first.

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 2/3 and 3/4?

Back

The least common denominator for 2/3 and 3/4 is 12.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest number that is a multiple of two or more numbers.

Front

What is the LCM of 8 and 5?

Back

The LCM of 8 and 5 is 40.

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have the same denominator. If not, find a common denominator, convert the fractions, and then subtract the numerators.

Front

What is 6/12 - 3/12?

Back

6/12 - 3/12 = 3/12.

Front

What is the sum of 7/10 and 2/10?

Back

7/10 + 2/10 = 9/10.

Front

What is a model for fractions?

Back

A model for fractions visually represents fractions, such as pie charts or bar models, to help understand parts of a whole.