Multiplying Unit Fractions
3 x ¼ =
3/4
Rewrite this repeated addition equation as a multiplication equation instead.
⅚ + ⅚ + ⅚ + ⅚ + ⅚ + ⅚ = 30/6 or 5
6 x ⅚ = 30/6 or 5
What is 8 x ¾ hour?
6 hours
Which property is being shown:
½ x 4 = 4 x ½
The Communicative Property
⅔ = ⃞ x ⅓
2
8 x ⅞ =
7
Ms. Narvaez worked for 8 hours and 12 minutes on her robot. Then worked 3 hours and 15 minutes more. How much time did she spend on her robot?
11 hours and 27 minutes
What type of fraction ALWAYS has a one as the numerator?
A Unit Fraction
Write ⅞ as a multiple of unit fractions.
7 x ⅛
12 x ⅕
2 ⅖ or 12/5
How many minutes are in 9 ¼ hours?
555 minutes
What do we call a fraction where the numerator is greater than the denominator?
An Improper Fraction
⅘ = 4 x ⅟ ?
⅕
If Ms. Walendziuk walks ⅖ mile to school and ⅖ mile home from school each day. How much does she walk in a typical school week (5 days)?
4 miles or 20/5 miles
It took Ms. Dorria 5 hours and 7 minutes to plant all her flowers. It took her 3 hours and 3 minutes to plant a tree the following weekend. How much longer did it take to take plant the flowers than to plant the tree?
2 hours and 4 minutes
What term do we use to describe a whole and a fraction?
Example: 3½
A Mixed Number
Ms. Alem wants to make 4 apples pies. The recipe called for ⅓ pounds of apples for each pie. How many pounds of apples will she need?
⁴⁄₃ or 1 ⅓
Ms. Núñez uses ⅔ cup of sugar to make sweet bread. How many cups will she need to make 10 loaves?
6 ⅔ cups or 20/3 cups
Lucas' baby sister rode the swing for 980 days in a row. How many weeks has she been on the swing?
140 weeks
Which property is being shown:
5 x 2 ¼ = 5 x (2 x ¼) = (5 x 2) x ¼
The Associative Property