Adding and Subtracting Fractions

How do you convert an improper fraction to a mixed number?

• Multiply the denominator by the whole number and add the numerator.

• Divide the numerator by the denominator. The quotient is the whole number, and the remainder is the new numerator over the original denominator.

• Subtract the whole number from the numerator and keep the denominator the same.

• Add the numerator and denominator together to form a new fraction.

What does it mean to add fractions?

• Combining the parts represented by the fractions. If the denominators are the same, add the numerators and keep the denominator.

• Multiplying the numerators and denominators of the fractions.

• Finding a common denominator and subtracting the numerators.

• Adding the denominators and keeping the numerators the same.

What is an improper fraction?

• A fraction where the numerator is less than the denominator, such as 3/4.

• A fraction where the numerator is equal to the denominator, such as 2/2.

• A fraction where the numerator is greater than or equal to the denominator, such as 5/4.

• A fraction that cannot be simplified further.

What is the simplest form of a fraction?

• When the numerator and denominator are equal.

• When the numerator is greater than the denominator.

• When the numerator and denominator have no common factors other than 1.

• When the fraction is expressed as a decimal.

How do you find a common denominator for 1/3 and 1/4?

• The least common multiple of 3 and 4 is 12, so the common denominator is 12.

• The greatest common divisor of 3 and 4 is 1, so the common denominator is 1.

• The sum of 3 and 4 is 7, so the common denominator is 7.

• The product of 3 and 4 is 12, so the common denominator is 12.

What is the sum of 2 2/6 and 1 5/6?

• 3 1/6

• 4 1/6

• 5 1/6

• 3 2/6

What does it mean to subtract fractions?

• Finding the sum of the fractions' numerators and denominators.

• Finding the difference between the parts represented by the fractions. If the denominators are the same, subtract the numerators and keep the denominator.

• Multiplying the numerators and denominators of the fractions.

• Adding the fractions together to get a whole number.

What is the difference of 6/8 and 4/8?

• 1/2

• 1/4

• 2/8

• 3/8

What is the mixed number for 9/4?

• 2 1/4

• 1 3/4

• 3 1/4

• 2 3/4

What is the first step in adding fractions with different denominators?

• Find a common denominator for both fractions.

• Add the numerators and denominators directly.

• Multiply the denominators together.

• Convert the fractions to decimals.