Add and Subtract Fractions

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.

If you have 1/3 of a pizza and eat 1/6 of it, how much pizza do you have left?

• 1/2 of the pizza.

• 1/4 of the pizza.

• 1/6 of the pizza.

• 1/3 of the pizza.

What is a mixed number?

• A whole number combined with a proper fraction.

• A number that is only a whole number.

• A fraction that is greater than one.

• A decimal number that is rounded.

What is the least common denominator (LCD)?

• The largest number that can be a common multiple of the denominators of two or more fractions.

• The smallest number that can be a common multiple of the denominators of two or more fractions.

• The sum of the denominators of two or more fractions.

• The difference between the denominators of two or more fractions.

Solve: 5/8 - 1/4. What is the answer?

• 1/2

• 1/4

• 3/8

• 5/8

What is the process to simplify a fraction?

• To multiply the numerator and the denominator by their least common multiple.

• To divide the numerator and the denominator by their greatest common factor.

• To add the numerator and the denominator together.

• To subtract the numerator from the denominator.

What is the relationship between addition and subtraction of fractions?

• Addition and subtraction of fractions are unrelated operations.

• Addition and subtraction of fractions are inverse operations; knowing one helps in understanding the other.

• Addition and subtraction of fractions can only be performed with whole numbers.

• Addition and subtraction of fractions yield the same result.

What is the first step in adding fractions?

• To find a common denominator for the fractions being added.

• To convert the fractions to decimals.

• To multiply the fractions together.

• To add the numerators and denominators directly.

How do you add fractions with different denominators?

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

• Simply add the numerators and denominators separately.

• Multiply the denominators and add the numerators.

• Add the fractions as they are without any changes.

Convert the improper fraction 9/4 to a mixed number.

• 1 3/4

• 2 1/4

• 3 1/4

• 2 3/4