Converting Decimals to Fractions

This video tutorial explains how to convert the decimal 1.5 into a fraction. It begins by placing the decimal over 1 and then moves the decimal point to the right by multiplying both the numerator and denominator by 10, resulting in 15/10. The video then demonstrates how to simplify this fraction by finding the greatest common factor (GCF) using a factor tree and a chart. The GCF is identified as 5, and the fraction is simplified to 3/2. The video concludes by showing how to express this as a mixed number, 1 and a half, and encourages viewers to subscribe for more math and science content.

What is the first step in converting 1.5 into a fraction?

• Place it over 1

• Find the GCF

• Multiply by 10

• Convert to improper fraction

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

• To convert to an improper fraction

• To find the GCF

• To eliminate the decimal

• To make the fraction larger

What is the result of multiplying 1.5 by 10?

• 1.5

• 15

• 10

• 5

What is the greatest common factor of 15 and 10?

• 5

• 2

• 3

• 10

Which method is used to find the prime factors of 15 and 10?

• Addition

• Multiplication

• Factor tree

• Division

What are the prime factors of 15?

• 3 and 1

• 3 and 2

• 5 and 2

• 5 and 3

How do you determine the greatest common factor using a chart?

• Subtract the numbers

• Find vertical pairs

• Multiply the numbers

• Add the numbers

What is the simplified form of the fraction 15/10?

• 1/2

• 2/3

• 5/3

• 3/2

How many times does 2 go into 3 when converting to an improper fraction?

• Zero times

• One time

• Two times

• Three times

What is the final improper fraction form of 1.5?

• 5/2

• 1/2

• 2/1

• 3/2