Free Professional Development

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Author:
Corinne Karizamimba

The student will be able to:

Define least common denominator (LCD), least common multiple, and equivalent fractions.

Find a common denominator by multiplying the denominators together.

Rename fractions using their least common denominator.

Identify the LCD of two or more fractions.

Add fractions with unlike denominators by converting to equivalent fractions with a LCD.

Simplify the result when necessary.

Recognize that the numerator and the denominator of a fraction must be multiplied by the same nonzero whole number in order to have equivalent fractions.

Recognize that there are two methods for adding and subtracting fractions with unlike denominators: common denominators and LCD.

Describe the procedure for each method of adding and subtracting fractions with unlike denominators.

Add and subtract fractions with unlike denominators by applying one the procedures above.

Apply procedures to complete five interactive exercise

Tutorial