Bookmark and Share

Add Fractions and Mixed Numbers with Unlike Denominators

This topic deals with the addition of the fractions with unlike denominators, and the mixed numbers with unlike denominators. We also learn to use models to add the fractions with unlike denominators.

Topic: Add Fractions with Unlike Denominators Using Models

  • We can use fraction models to add two fractions

  • To add the fractions with unlike denominators, rename them as the fractions with like denominator. For example, when adding 3/8 and 1/4, 1/4 can be written as 2/8

Topic: Add Fractions with Unlike Denominators

  • To add fractions with unlike denominators, we need to first rename them as fractions with a common denominator, and then find the sum

  • To rename fractions as fractions with a common denominator, rename them using LCD

  • The Least Common Denominator (LCD) is the Least Common Multiple (LCM) of the denominators

Topic: Add Mixed Numbers with Unlike Denominators

  • To add the mixed numbers with unlike denominators, we need to first rename them as mixed numbers with a common denominator and then find the sum

  • To rename the mixed numbers as the mixed numbers with a common denominator, rename the fraction parts using LCD

  • The Least Common Denominator (LCD) is the Least Common Multiple (LCM) of the denominators
Other Resources
View all concepts
Smartest Way to Practice Math
TenMarks is the smartest way to practice and learn math online. Experience our interactive worksheets that engage students.
Personalized program, mapped to state standards
Interactive worksheets with hints and video lessons
Rewards and certificates motivate students
Only $10 a month
TenMarks - Experience