Factors and Multiples
What are all the factors of 12?
1, 2, 3, 4, 6, and 12
Is 9 prime or composite?
Composite. Factors are 1, 3, and 9.
Name two equivalent fractions for 1221
2/4, 3/6, 4/8, 5/10....
Which is larger: 1/3 or 1/4?
1/3
What is 2/8 + 3/8?
5/8
List all the factors of 20.
1, 2, 4, 5, 10, and 20
Is 7 prime or composite? Explain why.
Prime. It only has two factors: 1 and 7.
Are 2/5 and 4/10 equivalent Fractions? How do you know?
Yes, When you multiply the numerator and denominator of 2552 by 2, you get 410104. They represent the same amount.
Which is larger: 3/4 or 2/3?
3/4.....3/4= 9/12 and 2/3= 8/12
What is 5/6 - 1/6?
4/6 or 2/3
List all the multiples of 6 that are less than 40.
6, 12, 18, 24, 30, 36
Is 15 prime or composite? What are its factors?
Composite. Factors are 1, 3, 5, and 15.
Create an equivalent fraction for 3/4 with a denominator of 12.
9/12
Order these fractions from least to greatest: 1/3, 1/6, 1/2
1/6, 1/3, 1/2
Sarah has a ribbon that is 7/8 meter long. She cuts off 2/8 meter. How much ribbon is left?
5/8 meter
What are the common factors of 18 and 24?
1, 2, 3, and 6
Is 29 prime or composite? How do you know?
Prime. Its only factors are 1 and 29.
Which two fractions are equivalent: 2/6, 3/9, 2/8?
2/6 and 3/9 (both equal 1/3)
Compare these fractions using >, <, or =: 5/8 and 5/6
5/8 < 5/6
What is 3/6 + 2/6 ? Write your answer in simplest form.
5/6
Find all the common multiples of 4 and 6 that are less than or equal to 24.
12 and 24
Name all the prime numbers between 10 and 20.
11, 13, 17, and 19
Use factors to simplify 8/12 to its simplest form.
2/3
Place 3/5 on a number line between 0 and 1. Where would it go?
3/5 would be located 3 tick marks out of 5 equal parts from 0 toward 1
What is 3/10 + 25/100
55/100