4.NF.3 Add|Subtract|Decompose Fractions Review

Front

What is a unit fraction?

Back

A unit fraction is a fraction where the numerator is 1 and the denominator is a positive integer, such as 1/2, 1/3, or 1/9.

Front

How do you decompose a fraction into unit fractions?

Back

To decompose a fraction into unit fractions, you express it as a sum of fractions with a numerator of 1. For example, 4/9 can be decomposed into 1/9 + 1/9 + 1/9 + 1/9.

Front

What is the sum of 3/8 and 5/8?

Back

The sum of 3/8 and 5/8 is 8/8, which is equal to 1.

Front

What does it mean for fractions to be equivalent?

Back

Fractions are equivalent if they represent the same value, even if they have different numerators and denominators, such as 1/2 and 2/4.

Front

How can you check if two fractions are equivalent?

Back

You can check if two fractions are equivalent by cross-multiplying. If the cross-products are equal, the fractions are equivalent.

Front

What is the process for adding fractions with the same denominator?

Back

To add fractions with the same denominator, you add the numerators and keep the denominator the same. For example, 2/5 + 1/5 = (2+1)/5 = 3/5.

Front

What is the process for adding fractions with different denominators?

Back

To add fractions with different denominators, you first find a common denominator, convert the fractions, and then add the numerators.

Front

What is the value of 4/8 + 2/8?

Back

The value of 4/8 + 2/8 is 6/8, which simplifies to 3/4.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common divisor (GCD). For example, 6/8 simplifies to 3/4.

Front

What is the relationship between improper fractions and mixed numbers?

Back

An improper fraction has a numerator that is greater than or equal to its denominator, while a mixed number combines a whole number with a proper fraction.