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 find a total. You may need a common denominator.

Front

What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions, allowing them to be added or subtracted.

Front

How do you find a common denominator for 1/5 and 5/6?

Back

The least common multiple (LCM) of the denominators (5 and 6) is 30, so 30 is a common denominator.

Front

What is the first step in adding fractions with different denominators?

Back

The first step is to find a common denominator for the fractions.

Front

What is the result of 2/5 + 3/10?

Back

7/10

Front

How do you subtract fractions?

Back

To subtract fractions, you need a common denominator, then subtract the numerators and keep the denominator the same.

Front

What is 2/3 - 2/4?

Back

2/12

Front

What is the result of 7/8 - 2/4?

Back

11/8

Front

What is a model in math?

Back

A model in math is a visual representation of a mathematical concept, such as using shapes to show fractions.