Sweet - Least Common Denominator Practice

Write the multiples of each denominator to determine the least common multiple for the fractions 2/4 and 1/3. What is the LCM?

• 12

• 6

• 8

• 10

Use the LCMs from above to rewrite the fractions with common denominators: 2/4 + 1/3 = ?

• 6/12 + 4/12

• 3/6 + 2/6

• 4/8 + 3/8

• 5/10 + 2/10

Use the LCMs from above to rewrite the fractions with common denominators: 3/8 + 2/3 = ?

• 9/24 + 16/24

• 8/24 + 18/24

• 10/24 + 15/24

• 12/24 + 14/24

Write the multiples of each denominator to determine the least common multiple for the fractions 1/3 and 2/6. LCM =

• 6

• 3

• 12

• 9

Write the multiples of each denominator to determine the least common multiple for the fractions 1/2 and 5/8. LCM =

• 8

• 10

• 12

• 16

Use the LCMs from above to rewrite the fractions with common denominators: 2/4 + 1/3 =

• 6/12 + 4/12

• 3/6 + 2/6

• 4/8 + 3/8

• 5/10 + 2/10

Use the LCMs from above to rewrite the fractions with common denominators: 1/2 + 5/8 =

• 4/8 + 5/8

• 3/8 + 5/8

• 2/8 + 5/8

• 1/8 + 5/8

Write the multiples of each denominator to determine the least common multiple for the fractions 2/3 and 3/5.

• LCM = 15

• LCM = 10

• LCM = 20

• LCM = 30

Use the LCMs from above to rewrite the fractions with common denominators: 2/3 + 3/5 =

• 9/15 + 10/15

• 4/6 + 9/15

• 6/9 + 9/15

• 8/12 + 12/20

Use the LCMs from above to rewrite the fractions with common denominators: 2/4 + 1/3 =

• 6/12 + 4/12

• 3/6 + 2/6

• 4/8 + 3/8

• 5/10 + 2/10