Finding Equivalent Fractions and Factors

The video tutorial explains how to use division to find equivalent fractions. It uses the example of daylight hours in Fairbanks, Alaska, to illustrate the concept. The tutorial covers the use of models to represent a 24-hour day, identifying common factors, and dividing the numerator and denominator by these factors to find equivalent fractions. It also discusses why certain numbers cannot be used as divisors and concludes with a summary of the process.

What fraction of the day does Fairbanks, Alaska, have daylight in early May?

• 24/24

• 6/24

• 18/24

• 12/24

What does the blue part of the model represent?

• Nighttime hours

• Daylight hours

• Morning hours

• Evening hours

What is a common factor?

• A factor two or more numbers have in common

• A number that is a multiple of another number

• A number that is greater than another number

• A number that divides another number

What is the equivalent fraction of 18/24 when divided by 2?

• 8/12

• 12/18

• 6/12

• 9/12

How many 2-hour sections represent daylight when 18/24 is divided by 2?

• 12

• 8

• 6

• 9

What is the equivalent fraction of 18/24 when divided by 3?

• 12/18

• 9/12

• 6/8

• 3/8

How many 3-hour sections represent daylight when 18/24 is divided by 3?

• 6

• 7

• 5

• 8

Why can't you divide 18/24 by 4 to find an equivalent fraction?

• 4 is too large

• 4 is not a common factor of 18 and 24

• 4 is not a factor of 24

• 4 is not a factor of 18

What happens if you divide the numerator and denominator by different numbers?

• The value of the fraction remains the same

• The value of the fraction changes

• The fraction becomes smaller

• The fraction becomes larger

What is another common factor of 18 and 24?

• 8

• 7

• 6

• 5