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Lesson 1: Decomposing fractions

What does it mean to decompose a fraction?

When we decompose a fraction, we break it down into smaller parts. This can help us understand the fraction better or make it easier to work with.
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What are mixed numbers and improper fractions?

A mixed number is a combination of a whole number and a fraction. For example, $2\frac{1}{2}$. An improper fraction is a fraction where the numerator is larger than the denominator. For example, $\frac{5}{2}$.
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How do we add and subtract fractions with common denominators?

When we add fractions with common denominators, we keep the denominator the same and add the numerators together. For example, $\frac{1}{4}+\frac{2}{4}=\frac{3}{4}$.
When we subtract fractions with common denominators, we keep the denominator the same and subtract the numerators. For example, $\frac{3}{4}-\frac{2}{4}=\frac{1}{4}$.
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What are equivalent fractions?

Equivalent fractions are two or more fractions that have the same value. For example, $\frac{1}{2}$, $\frac{2}{4}$, and $\frac{4}{8}$ are all equivalent fractions.
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What is a line plot?

A line plot is a graph that shows how many times each data point occurs. It's a good way to organize and analyze data.
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Want to join the conversation?

• i like realy dont understad ☹ but im gona keep redoing it ontill i understand :[
• Great!
• free vbuxs
• Is Khan the best place to learn about math?
• you now it
• it is not complicated, you just don't know how to do it
• yes its easy if you try again
• this is soo hard pls help:(