6th Adding Fractions - HW

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12

A plumber is fitting a water pipe that is 3/4 foot long on to a water pipe that is 2/12 foot long. How long will the finished pipe be?

• 11/12 foot
• 8/16 foot
• 2/12 foot
• 1 foot

A pizza has 5 pieces. Sara eats 3 of the pieces. What fraction of the pizza did Sara eat?

• 3/5
• 2/5
• 5/5
• 1/5

If you color in 2 more slices what is the fraction?

• 3/8
• 6/8
• 5/8
• 5/9

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction
• Rewrite the fractions in the simplest form. 
• Find a common denominator. 
• Make each fraction into an improper faction. 

• 5/14
• 3/7
• 5/7
• 5/14

• 4/5
• 4/10
• 2/5
• 5

3/9 + 4/9

• 7/18
• 7/9
• 12/9
• 12/81

• 5 1/2
• 1 1/6
• 5 5/14
• 4 19/24