Finding Least Common Denominators

What is the least common denominator for 1/2, 1/3, and 1/4?

• 8

• 10

• 12

• 14

What is the process to add fractions with different denominators?

• 1. Find the least common denominator, convert each fraction to an equivalent fraction with the common denominator, and add the numerators while keeping the common denominator.

• 1. Simply add the numerators and denominators of the fractions directly.

• 1. Multiply the denominators and add the numerators without any conversion.

• 1. Subtract the smaller fraction from the larger one to find the result.

How do you create equivalent fractions?

• Add the numerator and denominator together.

• Multiply or divide both the numerator and the denominator by the same non-zero number.

• Subtract the numerator from the denominator.

• Change the numerator to a different number.

What happens if you try to add fractions without a common denominator?

• You can accurately add the fractions without any issues.

• You cannot accurately add or subtract the fractions; the result will not be correct.

• The fractions will automatically find a common denominator.

• You can only add the whole numbers of the fractions.

What is the least common denominator (LCD)?

• The largest number that can be a common denominator for two or more fractions.

• The smallest number that can be a common denominator for two or more fractions.

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

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

What is the least common denominator for 5 and 15?

• 10

• 15

• 20

• 25

What must you have to add and subtract fractions?

• Common denominators.

• Different numerators.

• Similar denominators.

• Whole numbers.

Which of these numbers could NOT be a common denominator for 1/6 and 1/4: 12, 18, 24, 36?

• 12

• 18

• 24

• 36

Why is it important to have a common denominator when adding or subtracting fractions?

• It allows you to combine the fractions easily by adding or subtracting the numerators.

• It makes the fractions look more complex and difficult to understand.

• It helps in multiplying the fractions more effectively.

• It is only necessary for whole numbers, not fractions.

How do you find the least common denominator for two fractions?

• By adding the two denominators together

• By multiplying the two denominators

• To find the least common denominator for two fractions, list the multiples of each denominator and find the smallest multiple that they have in common.

• By taking the greatest common factor of the two denominators