Addition and Subtraction of Fractions with Mixed Numbers with Like Denominators

When adding mixed numbers, which do you add first?

• The whole number

• The fractions

• It doesn't matter

• Add the numerators (top parts of the fractions).

• Rewrite the fractions in the simplest form. 

• Rewrite the fractions with a common denominator. 

• Make each fraction into an improper faction. 

Solve

• 11 3/4

• 11 3/8

• 11

• 3/4

What is ALWAYS required when adding/subtracting fractions?

• The same numerators.

• The same denominators.

• Equivalent fractions.

• 1    5/12
• 3     11/24
• 3    11/12
• 3    1/2

1 11/12 + 2 5/12

• 4 1/3

• 3 4/12

• 4 16/12

Find Lowest Common Denominator & solve
8     4/5    +    9    1/10  =

• 18   5/15

• 17   5/10

• 17   9/20

• 17   9/10

A ________ is when you have a whole number and a fraction together.

• Mixed Number

• Improper Fraction

• Denominator

• We didn't talk about this !

When two or more fractions have the same denominators, they have ____________.

• mixed denominators

• improper fractions

• like denominators

• unlike denominators