Equivalent Fractions
Slide 5 --> Egg Carton
1, 2/2, 3/3...
1/3 + 1/3 = ?
2/3
What symbol goes in the blank: > , < , =
0.3 ____ 0.30
=
Miss Sopp has a ribbon that is 3 1/3 feet long. To wrap presents, she uses 2 2/3 feet. How much is leftover?
2/3 feet
5/6 > 2/6
True
1/2, 2/4, 3/6, 6/12
6/6 + 1/6 =?
7/6 or 1 1/6
Write this fraction as a decimal number:
70/100
0.7 or 0.70
To make a box of her amazing chocolate chip cookies, Miss Sopp need 2/4 cups of chocolate chips. She decides to make 5 boxes. How many cups of chocolate chips will Miss Sopp need?
2 2/4 or 2 1/2 cups
True or False?
6/10 > 60/100
False
Slide 3 ---> Geoboard
1/4, 2/8, 4/16
3 1/3 - 2/3
2/3
Write this fraction as a decimal number:
1 67/100
1.67
Kim baked 2 cakes that are the same size. One she cut into 4 equal slices. The other she cut into 8 equal pieces. She gave her friend 1/4 of the first cake, and then gave another friend 3/8 of the second cake. Her little brother said this is unfair. Who is right? Kim or her brother?
Her brother! Kim gave her second friend more cake!
4 x 1/7 =
4/7
Slide 4 --> Base 10 Pieces
4/10, 40/100, 2/5, 20/50
4/10 + 25/100
65/100
Write this fraction as a decimal:
4/10
0.4 or 0.40
Miss Sopp was really hungry one day and ate 1/4 of a cookie cake. Mr. Mennecke ate a small cookie. A second grade student said Mr. Mennecke ate more than Miss Sopp, because 1 whole is bigger than a 1/4. Do you agree?
No, because the wholes are different sizes. A whole cookie might be smaller than a part of a cookie cake.
5/5 = 1
True or False
True!
6/8, 9/12, 15/20
85/100 - 5/10
35/100
Slide 6 ---> Compare Base 10 pieces
They are both correct because they are looking at different sized pieces. There are 40 pieces when we are counting by hundredths and 4 pieces when we are counting by tenths.
To bake cookies, Miss Sopp needed 2 2/3 cups of flour. She decided to bake more cookies and decided to add 1 1/3 more cups of flour. How many cups of flour did she use in total?
4 cups of flour
5/12 > 4/6
False. (4/6 = 8/12)