Prime/Composite
Is the number 19 Prime or Composite?
Prime
What are two fractions that are equivalent to 6/9?
2/3, 12/18,.....
A _________ has exactly two factors, 1 and itself.
Prime Number
1/4 + 1/4
2/4 = 1/2
1/3 - 1/6 =
1/6
Is the number 26 Prime or Composite?
Composite
What are two fractions that are equivalent to 7/21?
1/3, 14/42,.....
The _________ of 3/6 = 1/2.
Simplest Form
2/6 + 1/3 =
4/6 = 2/3
7/10 - 1/5
5/10 = 1/2
How many factors does a composite number have?
More than two
Mr. Henderson says that 3/7 = 9/14. Is he correct? Explain.
No
A _________ is a whole number greater than 1 with more than two factors.
Composite Number
1/2 + 1/6
8/12 = 2/3
2/3 - 7/12 =
1/12
Ms. Wellbaum is making a banner with an area of 7 square feet. The width and length of the banner are whole numbers. What are its possible dimensions?
1ft wide 7ft long
True or False:
No matter how many equivalent fractions are found for any fraction, there is always one more to find?
True
In a fraction, the _______ is the number above the fraction bar.
Numerator
7/16 + 3/8
13/16
Mr. Bray made a turkey pot pie for dinner on Monday. He ate 4/8 of the pie. For lunch the next day, Mr. Bray ate 6/12 of the pie for a snack. What fraction of the pie remained?
3/8
What are the first 10 prime numbers?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
How can you use equivalent fractions to know that 43/200 is between 1/5 and 1/4?
Find equivalent fractions with a denominator of 200.
1/5 = 40/200 and 1/4 = 50/200
A __________ is a number that is the denominator of two or more fractions.
Common Denominator
3/18 + (2/9 + 1/2) =
16/18 = 8/9
(11/18-4/9) + 1/6 =
1/3