Section 1
Unit Fractions
Property
The fractional unit is the name for the equal parts a whole is divided into (e.g., thirds, fourths).
A unit fraction is one of these equal parts, written as , where is the total number of equal parts.
In this Grade 5 enVision Mathematics lesson from Chapter 9, students learn how to divide whole numbers by unit fractions using area models and number lines. The lesson explains that a unit fraction has a numerator of 1, and students discover that dividing by a unit fraction is equivalent to multiplying by its denominator. Practice problems guide students through solving expressions such as 3 ÷ 1/4 and applying this skill to real-world contexts.
Section 1
Unit Fractions
The fractional unit is the name for the equal parts a whole is divided into (e.g., thirds, fourths).
A unit fraction is one of these equal parts, written as , where is the total number of equal parts.
Section 2
Using a Number Line for Division by a Unit Fraction
To divide a whole number by a unit fraction , you can count how many parts are in on a number line. The total number of parts is the quotient.
Expand to review the lesson summary and core properties.
Section 1
Unit Fractions
The fractional unit is the name for the equal parts a whole is divided into (e.g., thirds, fourths).
A unit fraction is one of these equal parts, written as , where is the total number of equal parts.
Section 2
Using a Number Line for Division by a Unit Fraction
To divide a whole number by a unit fraction , you can count how many parts are in on a number line. The total number of parts is the quotient.