Add and Subtract Fractions

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

• Multiply the whole number by the denominator, add the numerator, and place that sum over the original denominator.

• Add the whole number to the numerator and keep the denominator the same.

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

• Divide the numerator by the denominator and write the result as a decimal.

What is a mixed number?

• A whole number only, such as 2.

• A proper fraction only, such as 1/2.

• A whole number combined with a proper fraction, such as 1 1/2.

• A decimal number, such as 1.5.

How do you convert a fraction to a decimal?

• Multiply the numerator by the denominator.

• Add the numerator and denominator together.

• Divide the numerator by the denominator.

• Subtract the denominator from the numerator.

What is the result of 1/2 - 1/4?

• 1/2

• 1/4

• 3/4

• 1/8

Tags

CCSS.7.NS.A.1C

What is the result of subtracting a fraction from a whole number?

• To subtract a fraction from a whole number, convert the whole number to a fraction with the same denominator as the fraction being subtracted, then perform the subtraction.

• Simply subtract the numerator of the fraction from the whole number.

• The result is always a whole number regardless of the fraction.

• You cannot subtract a fraction from a whole number.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of adding two fractions with the same denominator?

• You multiply the numerators and denominators.

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

• You subtract the numerators and keep the denominator the same.

• You add the denominators and keep the numerator the same.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the importance of finding a common denominator in fraction operations?

• It allows for accurate addition or subtraction of fractions.

• It simplifies the fractions to their lowest terms.

• It helps in converting fractions to decimals easily.

• It makes fractions easier to compare without calculations.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do you subtract fractions with different denominators?

• Find a common denominator, convert each fraction to an equivalent fraction with that common denominator, then subtract the numerators and keep the common denominator.

• Simply subtract the numerators and denominators separately.

• Convert both fractions to decimals and then subtract them.

• Add the fractions together and simplify the result.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the process for adding fractions with different denominators?

• Find a common denominator, convert each fraction to an equivalent fraction with that common denominator, then add the numerators and keep the common denominator.

• Add the numerators directly and keep the larger denominator.

• Multiply the denominators and add the numerators together.

• Convert both fractions to decimals and then add them.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do you check if a fraction is in simplest form?

• A fraction is in simplest form if the numerator and denominator have no common factors other than 1.

• A fraction is in simplest form if the numerator is greater than the denominator.

• A fraction is in simplest form if it can be expressed as a decimal.

• A fraction is in simplest form if both the numerator and denominator are even.