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ADDING AND SUBTRACTING FRACTIONS
GREATER THAN 1 AND MULTIPLYING FRACTIONSSWBAT add and subtract with mixed
numbers and improper fractions.SWBAT multiply fractions.
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Empire State Building 2530 Ft.Sears Tower 2240 FtTrump Tower 2480 FtEiffel Tower 2510 FtBig Ben 800 FtChrysler Building 1980 Ft
1. Over a period of 3 hours, 180 snowflakes fell from the sky. At this rate, how many snowflakes fell in one hour?
a. 540 b. 60 c. 9 d. 102. The perimeter of a square is found by adding all four sides together. Find the perimeter of a square if each side is 1 a. 4 b. 5 c. 16/3 d. 10/3 3. The following table shows the height of various buildings. What is the third tallest structure in the table?A Sears Tower B Chrysler Building C Trump Tower D Big Ben
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Adding and Subtracting with numbers greater than 1◦Make into all improper fractions
Practice
1. 1 ½ + 4 ¾ 2. 9/7 – 2/3 3. 2 ¼ + 6/5
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Multiplying Fractions
To multiply fractions, you do NOT have to find a common denominator.
Simply multiply the numbers straight across.
***of is a key word signifying multiplication***
Ex: =
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1.3/5 x 2/7
2.1/9 x 4/5
3.On Friday night, John ate pizza for dinner and had 1/2 of the pizza left over. On Saturday, he ate 1/3 of what was left. How much pizza did John eat on Saturday? How much did he have left?
4.In Aaliyah's grade, 2/3 of the students have a sister. Of the students who have a sister, 1/2 also have a brother. What fraction of the students in Aaliyah's grade have both a sister and a brother?
5.Zaire's lemon cookie recipe calls for 1/4 of a cup of sugar. How much sugar would Zaire use to make 1/4 of a batch of cookies?
6.The elephants at the Norfolk Zoo are fed 1/2 a barrel of corn each day. The buffalo are fed 7/10 as much corn as the elephants. How many barrels of corn are the buffalo fed each day?
7.Nevaeh had 1/3 of an apple pie. She gave 3/4 of what she had to her friend Braniyah. What fraction of the whole pie did Braniyah get?
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Extra Practice with Fractions
◦Text book Bits & Pieces II Pg 25 #s 2-6