Khan Academy Wiki
Comparing fractions and mixed numbers
Comparing improper fractions and mixed numbers 256
Description
Exercise Name: Comparing fractions and mixed numbers
Math Missions: 4th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission
Types of Problems: 1

The Comparing fractions and mixed numbers exercise appears under the 4th grade (U.S.) Math Mission, Arithmetic essentials Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise practices the ability to recognize relative sizes between mixed numbers and improper fractions.

Types of Problems[]

There is one type of problem in this exercise:

  1. Compare the mixed number and improper fraction: This problem provides two numbers, one of which is a mixed number and the other, an improper fraction. The student is asked to select which of the symbols <, >, or = can be placed between the numbers to make a true sentence.
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    Compare the mixed number and improper fraction

Strategies[]

Knowledge of fractions as part of a whole will ensure success on this exercise.

  1. In most mathematics, improper fractions are preferred because operations can be performed more mechanically. However, in common conversation mixed numbers occur more frequently.
  2. Dividing the improper fraction (seeing how many wholes it contains) can often determine which fraction is larger quickly.
  3. A calculator would go against the spirit of the problem, but can transfer numbers into decimals which may increase efficiency for some.
  4. An equivalent improper fraction and mixed number does occur on this problem, so the equals sign will be used occasionally.

Real-life Applications[]

  1. Fractions can be a source of weakness for many students but are important in measurement, science and economics. The strengthening of fractions via geometric models will increase proficiency with fractions.
  2. Fractions are used in real life in many different ways, but they are most commonly used in the cooking, construction and science industries.