Fractions & Division
Divide 12 by 3
4
There are 3 rounds of cheese for 12 lunches. How much cheese each day?
¼ round of cheese per day (3 ÷ 12 = ¼)
Write another name for 8½ with the same denominator.
8 2/4 or 8 4/8
A baker has 9 cupcakes. She wants to pack them evenly into 3 boxes. How many cupcakes per box?
3 cupcakes per box
What’s a fraction that equals ½ but looks different?
2/4, 3/6, 4/8, etc.
What fraction of 9 is 1/3?
3 (since 1/3 × 9 = 3)
Three families share a 220-ounce detergent equally. How much per family?
73⅓ ounces each (220 ÷ 3 = 73 R1 → 73⅓)
Write another name for 2⅗ with the same denominator.
2 14/10 (or simplified examples like 2 7/5 → 2 14/10)
Ethan ran ¾ of a mile each day for 4 days. How far did he run in total?
3 miles (¾ × 4 = 3)
How many eighths make one whole?
8 eighths (8/8 = 1)
Rename 12/5 as a mixed number.
2 2/5
There are 5 pizzas and 8 friends. If everyone gets an equal share, how much pizza does each friend get?
⅝ of a pizza per friend
15/2 = ? as a mixed number.
7½
A recipe calls for 2½ cups of flour. If you want to make half the recipe, how much flour do you need?
1¼ cups
True or False: ⅔ + ⅓ = ⅔
False, ⅔ + ⅓ = 1 whole
Jeremy said ¾ + ⅕ = ⁴⁄₉. Is he right? Explain why or why not.
No, you can’t add fractions with unlike denominators. You must find a common denominator first.
A chef has 2⅓ heads of lettuce and uses ⅔. How much is left?
1⅔ heads of lettuce left
¼ of 20 = ?
5
Sarah bought 3 pizzas. Each pizza was cut into 8 slices. She ate 5 slices. What fraction of the total pizza did she eat?
5/24 of the pizzas
What’s a mixed number greater than 3 but less than 4?
Examples: 3¼, 3½, 3¾
Divide the number line into eighths and label each fraction.
0, 1/8, 2/8 (¼), 3/8, 4/8 (½), 5/8, 6/8 (¾), 7/8, 1
Natasha’s plant grew from 2⅛ to 3⅜ inches. How much did it really grow?
1¼ inches (3⅜ – 2⅛ = 1¼)
Jason bought 60 oranges and gave ⅕ to his aunt. How many oranges did she get?
12 oranges (⅕ × 60 = 12)
A 12-foot board is cut into pieces that are each 2¾ feet long. How many full pieces can be cut?
4 pieces (2¾ × 4 = 11, 1 foot leftover)
You have 5 friends and 3 pizzas. How could you divide them fairly?
Each friend gets ⅗ of a pizza (3 ÷ 5 = ⅗)