Let's Be Rational
Midterm Study Guide Review
Unit Description
Adding with Common Denominators
2. Keep the same denominator
3. Simplify!
Adding with Uncommon Denominators
2. Create equivalent fractions
3. Add the numerators
4. Keep the same denominator
5. Simplify!
Adding Mixed Numbers
2. Create equivalent fractions
3. Add the whole numbers
4. Add the fractions
5. Simplify!
Subtracting with Common Denominators
2. Keep the same denominator
3. Simplify!
Subtracting with Uncommon Denominators
2. Create equivalent fractions
3. Subtract the numerators
4. Keep the same denominator
5. Simplify!
Subtracting Mixed Numbers
2. Subtract the numerators
3. Keep the same denominator
4. Simplify!
Multiplying with Any Denominator
2. Simplify!
Note: When multiplying mixed numbers, you MUST change the mixed number to an improper fraction and then multiply straight across.
Dividing with Any Denominator
2. Change it! (Change multiplication sign to division sign)
3. Flip it! (Flip the second fraction)
4. Multiply straight across
5. Simplify!
When dividing whole numbers, you MUST change the whole number to an improper fraction by putting one in the denominator.