Divide: Numbers by Fractions

The video tutorial explains how to divide whole numbers by unit fractions. It begins with an introduction to whole numbers and unit fractions, followed by a step-by-step guide on dividing whole numbers by unit fractions using the reciprocal method. The tutorial includes practical examples, such as dividing pizzas and crayon boxes, to illustrate the concept. The video concludes with a recap of the key steps involved in the division process.

What is a unit fraction?

• A fraction with a numerator greater than the denominator

• A fraction with equal numerator and denominator

• A fraction with a denominator of 1

• A fraction with a numerator of 1

What is the first step in dividing a whole number by a unit fraction?

• Multiply the whole number by the unit fraction

• Write the whole number as a fraction with a denominator of 1

• Find the reciprocal of the whole number

• Subtract the unit fraction from the whole number

In the example of 5 divided by 1/7, what is the reciprocal of 1/7?

• 5/1

• 1/5

• 1/7

• 7/1

How many people can be served if Jessica bought 3 pizzas and each person gets 1/4 of a pizza?

• 15

• 6

• 9

• 12

What is the reciprocal of 1/4?

• 3/1

• 1/3

• 1/4

• 4/1

If there are 15 boxes of crayons and each student gets 1/3 of a box, how many students can get crayons?

• 30

• 45

• 50

• 60

What is the final step in dividing a whole number by a unit fraction?

• Multiply the numerators and denominators and simplify

• Divide the numerators

• Subtract the denominators

• Add the numerators