Multiplying and Converting Fractions

This video tutorial teaches how to multiply a whole number by a fraction by viewing it as repeated addition of fractional parts. It explains the concept using examples, such as multiplying whole numbers and fractions in the context of distributing cupcakes and preparing a cookie recipe. The tutorial also covers converting improper fractions to mixed numbers for better understanding.

What is the main idea behind multiplying a whole number by a fraction?

• Subtracting the same number repeatedly

• Adding different numbers repeatedly

• Dividing the whole number by the fraction

• Adding the same fractional part repeatedly

What does 4 times 1/8 represent?

• Four groups of 1/8

• One group of 4

• Four groups of 8

• One group of 4/8

When adding fractions, why does the denominator stay the same?

• Because the fractions are whole numbers

• Because the numerator changes

• Because the fractions are the same

• Because the fractions are different

How many pieces of 1/8 size do you get when you multiply 4 by 1/8?

• 4 pieces

• 5 pieces

• 3 pieces

• 2 pieces

How many cupcakes did Mr. Good give out if he gave 1/3 of a cupcake to 8 students?

• 8/3 cupcakes

• 2 cupcakes

• 3 cupcakes

• 8 cupcakes

What is the improper fraction for 8 times 1/3?

• 7/3

• 8/3

• 9/3

• 10/3

How do you convert 8/3 into a mixed number?

• Add 3 to 8 to get 11

• Subtract 3 from 8 to get 5

• Multiply 8 by 3 to get 24

• Divide 8 by 3 to get 2 with a remainder of 2

How much sugar is needed for 5 batches if each batch requires 3/4 cup of sugar?

• 3 cups

• 3 and 1/2 cups

• 3 and 3/4 cups

• 4 cups

What is the improper fraction for 5 times 3/4?

• 12/4

• 13/4

• 14/4

• 15/4

How do you convert 15/4 into a mixed number?

• Add 4 to 15 to get 19

• Divide 15 by 4 to get 3 with a remainder of 3

• Multiply 15 by 4 to get 60

• Subtract 4 from 15 to get 11