Show:
Fractions of Shapes
Fractions as Sets
Fractions of Numbers
Fractions as Decimals (No Calculator)
Fractions as Decimals (Calculator)
100
What does the denominator mean? What does the numerator mean?
Denominator = total and Numerator = # you have
100
See picture #1: What fraction of the shapes are stars?
5/10 or 1/2
100
What does the top number of a fraction tell you to do? What does the bottom number tell you to do?
Top number = multiply Bottom number = divide
100
How do you change a fraction to a decimal without a calculator?
Change the denominator to a 10, 100, or 1,000
100
Find the decimal of 3/4
0.75
200
See picture #1 What fraction of pieces are shaded?
2/4 or 1/2
200
See picture #2: What fraction of the shapes are triangles?
3/19
200
Solve with chips: 1/4 of 12
3
200
Change to a decimal: 4/10
0.4
200
Find the decimal of 3/8
0.375
300
See picture #2: What fraction of pieces are not shaded?
3/8
300
What fraction of the numbers are even: 3, 5, 4, 2, 8, 7, 12, 10, 11
5/9
300
Change to a decimal: 8/100
0.08
300
Find the decimal of 1/3
0.333333
400
See picture #3: What fraction of pieces are shaded?
6/16 or 3/8
400
Miss Niehoff goes to the pet store to buy another cat. 3 cats are grey, 8 are black, and 4 are white. What fraction of the cats are grey?
3/15 or 1/5
400
Solve with chips: 2/5 of 20
8
400
Change to a decimal: 3/5
0.6
400
Find the decimal of 7/4
1.75
500
See picture #4: What fraction of the pieces are shaded?
0/6 or 0
500
Ms. Proell is going shopping. She buys 4 scarves, 2 coats, 5 pairs of mittens, and 1 pair of shoes. What fraction of the items are mittens?
5/12
500
Solve without chips: 3/4 of 24
18
500
Change to a decimal: 15/20
0.75
500
Find the decimal of 10/5
2.0