Adding Fractions with Unlike Denominators

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

• Add the numerators directly

• Multiply the fractions

• Subtract the denominators

• Find the least common multiple (LCM)

To find the least common multiple of two numbers, you should:

• List the multiples of each number until they match

• Add the two numbers together

• Multiply the two numbers

• Subtract one number from the other

How do you convert 1/3 to an equivalent fraction with a denominator of 15?

• Multiply by 5/5

• Multiply by 3/3

• Multiply by 2/2

• Multiply by 4/4

What is the sum of 1/3 and 2/5 when converted to fractions with a common denominator?

• 9/15

• 13/15

• 7/15

• 11/15

When adding fractions with the same denominators, you:

• Add the numerators and keep the denominator the same

• Add the denominators

• Multiply the numerators

• Subtract the numerators

What is the least common multiple of 2, 4, and 8?

• 12

• 8

• 16

• 4

After converting 1/2 and 1/4 to equivalent fractions with a denominator of 8, what is their sum including 1/8?

• 6/8

• 7/8

• 8/8

• 5/8

What is the least common multiple (LCM) used to add 1/6 and 3/8?

• 24

• 36

• 48

• 12

How do you convert 1/6 to an equivalent fraction with a denominator of 24?

• Multiply by 4/4

• Multiply by 3/3

• Multiply by 6/6

• Multiply by 2/2

What is the sum of 1/6 and 3/8 when converted to fractions with a common denominator of 24?

• 12/24

• 13/24

• 14/24

• 15/24