Subtracting Fractions with Unlike Denominators

If Andrew ran 1/3 of a mile and swam 5/6 of a mile, how do you find how much farther he swam than ran?

• Convert both fractions to a common denominator and subtract: 5/6 - 1/3 = 3/6 = 1/2.

• Multiply both fractions: 1/3 * 5/6 = 5/18.

• Add both fractions: 1/3 + 5/6 = 7/6.

• Convert both fractions to decimals and subtract: 0.833 - 0.333 = 0.5.

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.

How do you convert mixed numbers to improper fractions?

• Multiply the whole number by the denominator, add the numerator, and place that 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 whole number and keep the denominator as is.

What does it mean to subtract fractions?

• Finding the sum of two fractions.

• Finding the difference between two fractions.

• Multiplying two fractions together.

• Dividing one fraction by another.

What is the result of 2/3 - 1/4?

• 1/4

• 5/12

• 1/2

• 7/12

What is the result of 1 1/4 - 2/3?

• 5/12

• 7/12

• 1/2

• 3/4

How do you find a common denominator for 3/5 and 5/10?

• The least common denominator for 3/5 and 5/10 is 5.

• The least common denominator for 3/5 and 5/10 is 10.

• The least common denominator for 3/5 and 5/10 is 15.

• The least common denominator for 3/5 and 5/10 is 20.

What fraction of a bag is left if you give away 1/3 and 1/5 of it?

• 1/2 of the bag is left.

• 1/4 of the bag is left.

• 7/15 of the bag is left.

• 2/5 of the bag is left.

What is the result of 3/5 - 5/10?

• 1/5

• 1/10

• 1/2

• 0

What are unlike denominators?

• Denominators that are the same in two or more fractions.

• Denominators that are not the same in two or more fractions.

• Denominators that are greater than one.

• Denominators that are less than one.