Subtracting Proper/Improper Fractions with Unlike Denominators

minuend - subtrahend = difference

1.  When the denominators are different determine the lowest common denominator (LCD).

2.  Change each fraction to an equivalent fraction with the LCD.

3.  Add the numerator in the subtrahen from the numerator in the minuend and place the difference over the LCD.

4.  Reduce to lowest terms.

Subtracting Fractions with Unlike Denominators Instructions

The Minuend and Subtrahend must be entered before the Explain button works

• If you need help writing proper fractions, check out:  Identify Fractions.

• If you need help writing mixed numbers, check out:  Identify Fractions.

The difference must be written as a mixed number and in lowest terms .

From Richard E. Rand's: VISUAL FRACTIONS

Enter the answers.   Click on the Help button if you need assistance.

source:  NSU-Math 1030 Unit 2 Section 3  Author

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