Adding/Subtracting Fractions Unlike Denominator

What is the sum of 3/4 and 2/6?

• 13/12

• 6/8

• 8/24

• 8/12

What is the Least Common Denominator for 1/2 and 1/4

• 8

• 2

• 4

• 16

Which expression is equivalent to the sum of 6/12 + 9/12

• 3/6 + 5/6

• 1/2 + 3/4

• 2/12 + 5/12

• 3/8 + 7/8

Find the difference:

7/9 - 2/5

• 17/45

• 5/4

• 5/9

• 5/45

What is the sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Find the sum of 3/8 and 2/6

• 5/14

• 17/24

• 5/8

• 5/6

Add 6/14 and 1/2

• 7/16

• 13/14

• 7/14

• 3/4

Find the LCD for 1/3 and 2/9

Which shows a way to solve 3/7 + 2/5

• _{Add the numerators first, then add the denominators.}

• Find the LCD for 7 and 5, then make equivalent fractions and then subtract

• Find the LCD for 7 and 5, then make equivalent fractions and then add

• Find the LCD for 7 and 5, then multiply both numerators by 5.