Fraction Operations and Reciprocals

This lesson covers dividing fractions, starting with modeling fraction division using real-world problems. It explains the concept of reciprocals and how they are used in division. The lesson includes practice problems and applies fraction division to real-world scenarios, concluding with a summary of key points.

If you have 3/4 cup of salsa and each burrito requires 1/8 cup, how many burritos can you make?

• 7

• 6

• 5

• 4

What is the reciprocal of 3/4?

• 1/4

• 4/3

• 3/4

• 1/3

How do you find the reciprocal of a whole number?

• Write it as a fraction with 1 as the numerator

• Divide by one

• Multiply by zero

• Switch the numerator and denominator

In a division problem, what is the relationship between the divisor and the multiplier when using reciprocals?

• They are both fractions

• They are equal

• They are both whole numbers

• They are reciprocals

What is the result of dividing 5 by 5/8 using a diagram?

• 7

• 9

• 6

• 8

How do you divide a fraction by another fraction?

• Add the fractions

• Multiply by the reciprocal of the divisor

• Multiply the fractions

• Subtract the fractions

If you have 9/10 gallon of paint and each birdhouse requires 1/20 gallon, how many birdhouses can you paint?

• 15

• 22

• 18

• 20

How many 1/3 meter pieces can be cut from a 3/4 meter ribbon?

• 2

• 4

• 3

• 5

If a honeybee makes 1/12 teaspoon of honey, how many bees are needed to make 1/2 teaspoon?

• 4

• 5

• 6

• 7

What fraction of a salad is left if 1/3 is eaten and the rest is divided among 6 friends?

• 2/9

• 1/9

• 1/6

• 1/3