Adding and Subtracting Fractions with Unlike Denominators

Timmy took a bag of candy to school with him. The bag was 5/8 full. During the day, he gave away 1/4 of the bag of candy. How much candy did Timmy have left?

• 3/8

• 1/2

• 3/4

• 7/8

Answer explanation

Make sure you find common denominators and subtract from the amount "Timmy" started with.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

A group of kids in a neighborhood decided to have a cereal party. Gracie brought 1/5 box of Fruit Loops. Alyssa brought 1/2 box of Cheerios. Kristina brought 3/10 box of Frosted Flakes. They decided to combine all of the cereal together. After they combined all of the cereal they spilled 3/10 of the total amount. How much cereal remains for the group to enjoy for their party?

• 1/2 of a box

• 1/3 of a box

• 7/10 of a box

• 3/10 of a box

Answer explanation

Think about adding the amounts together "combined". Make sure you remember there is more than one step, they also "spilled" some of the total.

Tags

CCSS.7.NS.A.3

Jenna has 3/4 cup of laundry detergent. She used 1/3 cup of laundry detergent for each load she washes. How much detergent is remaining after she washes a load of laundry?

• 2/3

• 1/4

• 7/12

• 5/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Maleke and Mason shared one large pizza. Maleke ate 1/3 of the pizza and Mason ate 3/8 of the pizza. Exactly what fraction of this pizza was NOT eaten by Maleke and Mason?

• 8/12

• 7/24

• 1/3

• 7/8

Answer explanation

How much did Mason and Meleke eat altogether? If you know how much they ate, then how much of the pizza was left uneaten?

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Select all true answers:

Identify the common factors of 28 and 42.

• 1

• 14

• 3

• 28

• 7

Answer explanation

MORE THAN ONE ANSWER! (Factor Rainbows)

Which list of numbers contain only common factors of 10 and 30?

• 2,5,10

• 2,5,15,30

• 2,5,15

• 3,6,9,15

Answer explanation

RAINBOWS!

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 3 and 18?

(a)  

What is the least common multiple of 4 and 16?

• 64

• 4

• 8

• 16

Breanna is filling numbers in the Venn Diagram. A number is not to be entered more than once. Which numbers could you place in the shaded area that both 25 and 20 share?

• 500

• 80

• 100

• 250

What is the LCM of 12 and 20?

(a)