Finding Common Denominators in Fractions

What is the primary goal when adding or subtracting unlike fractions?

• Simplify them

• Find equivalent fractions

• Make them like fractions

• Multiply them

What are equivalent fractions?

• Fractions with different values

• Fractions that have the same value but use different top and bottom numbers

• Fractions that can't be simplified

• Fractions with the same top and bottom numbers

When changing 1/2 and 3/5 to equivalent fractions with a common denominator, what is the common denominator?

• 2

• 5

• 7

• 10

What method is introduced in this video to find a common denominator?

• Least Common Multiple

• Cross-multiplication

• Easiest Common Denominator

• Greatest Common Factor

How is the common denominator found using the "Easiest Common Denominator" method?

• By adding the denominators

• By finding the least common multiple

• By multiplying the denominators

• By dividing the denominators

To add 2/5 and 1/3 using the easiest common denominator method, what whole fraction should 2/5 be multiplied by?

• 5/5

• 3/3

• 2/2

• 1/1

What is the sum of 2/5 + 1/3?

• 3/8

• 11/15

• 7/8

• 1/2

What is the common denominator for 7/8 and 3/10 using the easiest common denominator method?

• 18

• 20

• 80

• 70