Varsity Tutors 
Varsity Tutors: Hotmath: Practice Problems: Fractions, Number Theory
Twenty problems presented on the topics: factors, prime/composite and many aspects of working with fractions. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click...
Other
Nearpod: Exponent Rules: Improper Fraction & Mixed Number Conversions
In this lesson on improper fractions and mixed numbers, learners will learn how to convert between improper fractions and mixed numbers using visual models and the standard algorithm.
Varsity Tutors 
Varsity Tutors: Hotmath: Practice Problems: Percents 2
Twenty-eight problems present a variety of percent topics: percents as fractions, improper, and mixed numbers, percents as decimals, simple interest, and percent of increase/decrease. They are given with each step to the solution...
CK-12 Foundation
Ck 12: Arithmetic: Fraction and Mixed Number Comparison Grade 7
[Free Registration/Login may be required to access all resource tools.] Compare and order fractions and mixed numbers using inequality symbols
Khan Academy
Khan Academy: Fractions as Division Word Problems
Practice word problems that involve using the fraction bar as division. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Understanding Fractions as Division
In this exercise, students demonstrate their understanding of fractions as division. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
CK-12 Foundation
Ck 12: Elem Math: Finding the Reciprocal of Fractions
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to find the reciprocals of fractions, whole numbers, and mixed numbers. Includes video demonstrating a sample problem...
Cool Math
Coolmath: Fractions Improper Fractions
This prealgebra lesson explains improper fractions and how to convert them into mixed numbers.
Visual Fractions
Visual Fractions: Fraction Subtraction With Circles
Use this site to learn how to subtract fractions using circles at this site from Visual Fractions. You will receive immediate feedback on your answers.
Homeschool Math
Homeschool Math: Adding Like Fractions and Mixed Numbers
This lesson teaches how to add like fractions and mixed numbers with like fractional parts using visual models (pies, fraction bars). It includes lots of exercises.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Add and Subtract Fractions
This Math Page tutorial explains how to add and subtract fractions and features a practice section at the very end of the lesson.
Khan Academy
Khan Academy: Multiply Fractions and Whole Numbers Visually
Use area models, number lines, and tape diagrams to multiply a whole number times a fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Subtracting Fractions With Unlike Denominators
Practice subtracting fractions that have different denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Sophia Learning
Sophia: Comparing Fractions With Unlike Denominators
Students review how to compare fractions with unlike denominators. The video tutorial includes detailed examples.
The Math League
The Math League: Fractions
This tutorial covers all types of fractions with simple explanations on how to work with them.
ClassFlow
Class Flow: Adding Like Fraction and Mixed Numbers
[Free Registration/Login Required] This flipchart reviews the meaning of numerator, denominator, mixed number, and improper fraction. Students are introduced to adding like fractions and adding mixed numbers with like denominators using...
PBS
Pbs: Modeling Fraction and Mixed Number Division Using Arrays
This video illustrates how to use an array as a visual model for solving a word problem involving the division of fractions and mixed numbers. The problem asks students to determine the width of a rectangular fennec fox den based on its...
Cool Math
Coolmath: Coolmath4kids: Improper Fractions
Explains what improper fractions are, how to convert one into a mixed number, and how to change a mixed number into an improper fraction.
CK-12 Foundation
Ck 12: Arithmetic: Addition of Fractions
[Free Registration/Login may be required to access all resource tools.] Add and subtract fractions and mixed numbers with like and unlike denominators
CK-12 Foundation
Ck 12: Arithmetic: Mixed Number and Fraction Estimation
[Free Registration/Login may be required to access all resource tools.] Approximate fractions and mixed numbers by using common benchmarks
CK-12 Foundation
Ck 12: Arithmetic: Estimation With Mixed Number/fraction Subtraction
[Free Registration/Login may be required to access all resource tools.] Estimate differences of fractions and mixed numbers
CK-12 Foundation
Ck 12: Arithmetic: Division of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] Learn how to divide by rational numbers.
Intel Corporation
Intel: Fractions Made Visual
Students learn the importance of math accuracy and, more specifically, that knowing how to add, subtract, multiply, and divide fractions make life easier for everyone. To help students come to this understanding, they are assigned to a...
Calculator Soup
Calculator Soup: Simplifying Complex Fractions Calculator
This calculator will show you how to simplify complex fractions. Input any 2 mixed numbers (mixed fractions), regular fractions, improper fraction or integers and simplify the entire fraction by each of the methods shown.