Converting Decimals to Fractions

This video tutorial demonstrates how to convert the decimal 2.5 into a fraction. It begins by explaining the process of writing 2.5 over 1 to form a fraction. The video then shows how to eliminate the decimal by multiplying both the numerator and denominator by 10, resulting in 25/10. Next, it explains how to reduce the fraction by finding the greatest common factor (GCF) using a factor tree, simplifying 25/10 to 5/2. Finally, the video converts the fraction into an improper fraction, 2 and 1/2, and concludes with a call to subscribe for more math and science videos.

What is the first step in converting 2.5 into a fraction?

• Add 0.5

• Write it over 1

• Divide by 2

• Multiply by 100

Why do we multiply both the numerator and denominator by 10?

• To convert it to a percentage

• To make the fraction larger

• To eliminate the decimal

• To simplify the fraction

What is the result of multiplying 2.5 by 10?

• 30

• 20

• 25

• 15

What is the greatest common factor of 25 and 10?

• 10

• 5

• 15

• 2

Which method is used to find the greatest common factor in the video?

• Subtraction method

• Factor tree

• Division method

• Prime factorization

What is the simplified form of the fraction 25/10?

• 2/5

• 10/5

• 5/2

• 5/10

How is the improper fraction 5/2 converted into a mixed number?

• 4 and 1/2

• 3 and 1/2

• 2 and 1/2

• 1 and 3/2

What is the final mixed number form of 2.5?

• 4 and 1/2

• 2 and 1/2

• 1 and 1/2

• 3 and 1/2

What is the purpose of the video?

• To solve equations

• To convert decimals to fractions

• To explain fractions

• To teach multiplication

What does the video encourage viewers to do at the end?

• Like the video

• Subscribe and share

• Watch another video

• Comment below