Fractions
Which is an equivalent fraction for
1/4
2/8
The FACT TRIANGLE shows four numbers that are related through multiplication and division.
True/false
False. It shows 3 numbers
40 ÷ 4 =
10
6 x 3 =
18
14 x 4 =
Decompose 14 (10 and 4)
Multiply 10 x 4 = 40 and 4 x 4 = 16
Add: 40+16 = 56
It is a number that represents part of a whole.
Fraction
Facts that are related are called a FACT FAMILY.
True/False
True
25 ÷ 5 =
5
81
12 x 5 =
Decompose 12 (6 and 6)
Multiply 6 x 5 = 30 and 6 x 5 = 30
Add 30 + 30 = 60
Is this comparison correct? (Same denominator)
3/6 < 5/6
The number that is being divided is the quotient.
True/false
False. It is the dividend
8 ÷ 8 =
1
5 x 8 =
40
2 x 6 x 3 =
(2 x 6) x 3 =
12 x 3 = 36
Answer: 36
It represents the number of equal parts in the whole. It is written below the line in a fraction.
The Denominator
The divisor is the answer to a division equation.
True/False
False. It is the quotient
49 ÷ 7 =
7
2 x 3 x 4 =
24
In the cafeteria, a table is 16 feet long and 5 feet wide.
What is the area of the table?
Decompose 16 (10 and 6)
Multiply: 10 x 5 = 50 and 6 x 5 = 30
Add the area: 50+30=80
Area: 80 feet
Is this comparison correct? (Same numerator)
3/6 > 3/4
No, 3/4 is greater than 3/6
Decompose is to break a number into smaller parts.
True / False
True
42 ÷ 7 =
6
7 x 2 x 10 =
140
Marissa is making a banner that is 17 feet long and 4 feet wide.
What is the area of the banner?
Explain the decomposing strategy.
Decompose 17 (10 and 7)
Then multiply: 10 x 4=40 and 7 x 4 = 28
Then add the area: 40 + 28 = 68
Area: 68 feet