Adding and Subtracting Fractions with unlike denominators( TM)

What do you do with the numerators when adding fractions?

• You multiply the numerators together after converting to a common denominator.

• You add the numerators together after converting to a common denominator.

• You subtract the numerators after converting to a common denominator.

• You leave the numerators unchanged and add the denominators.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is a common denominator?

• A number that is a multiple of the denominators of two or more fractions.

• A number that is the sum of the denominators of two or more fractions.

• A number that is the difference between the denominators of two or more fractions.

• A number that is the product of the denominators of two or more fractions.

Tags

CCSS.7.NS.A.1C

How do you subtract fractions with unlike denominators?

• Find a common denominator, convert the fractions, and then subtract the numerators.

• Simply subtract the numerators and denominators separately.

• Multiply the denominators and then add the numerators.

• Convert the fractions to decimals and then subtract.

Tags

CCSS.7.NS.A.1C

What is a fraction?

• A fraction is a whole number.

• A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

• A fraction is a type of decimal number.

• A fraction is a mathematical operation involving addition.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What do you do with the denominators when adding fractions?

• You multiply the denominators together.

• You keep the common denominator the same after finding it.

• You add the denominators together.

• You ignore the denominators completely.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the definition of a numerator?

• The bottom part of a fraction that indicates the total number of parts.

• The top part of a fraction that indicates how many parts are being considered.

• A mathematical operation that combines two fractions.

• A term used to describe the whole number in a mixed number.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the importance of equivalent fractions in adding and subtracting?

• They help to find a common denominator by expressing fractions in a different form.

• They make fractions easier to read and understand.

• They allow for the simplification of whole numbers only.

• They are used to convert decimals into fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Can you add fractions with unlike denominators directly?

• Yes, you can add them directly.

• No, you cannot add fractions with unlike denominators directly without finding a common denominator.

• You can add them directly if they are both improper fractions.

• You can add them directly if they have the same numerator.

Tags

CCSS.7.NS.A.1C

What is the first step in adding or subtracting fractions?

• To find a common denominator for the fractions.

• To convert the fractions to decimals.

• To multiply the numerators and denominators.

• To add the numerators and keep the denominator the same.

Tags

CCSS.7.NS.A.1C