Prime Factors
What are the first 10 prime numbers?
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
What is the GCF of 12 and 18?
6
Convert 21/4 into a mixed number.
5 1/4
13/23. Compare it to 1/2.
What is the LCD of 8/10 and 11/20?
20
What is the prime factorization of 51?
3 x 17
What is the GCF of 32 and 200?
2^3
Convert 3 5/8 into an improper fraction.
29/8
8/5 = 16/10 , 1 2/3, 2.2
Compare the two fractions, using an LCD.
5/6 and 14/20
50/60 > 42/60
Is 1,899,342,570 divisible by 3?
Yes. Add the digits. 1+8+9+9+3+4+2+5+7=48, which is 3x16
What is the GCF of
#1: 2^2 x 3^3 x 5^5 x 7^7
#2: 2 x 3 x 5^2 x 11
2 x 3 x 5^2
Convert 58/6 into a mixed number.
9 4/6
Order from least to greatest: 5 11/30, 16/3, 19/4, 5 2/3
19/4, 16/3, 5 11/30, 5 2/3
Compare the 2 fractions using an LCD.
17/25 and 88/100
68/100 < 88/100
2^2 x 5^2
What is the LCM of 20 & 45?
180
Convert 10 3/9 into an improper fraction.
93/9
Which is larger? 5 2/8 or 49/9?
49/9
Compare the two fractions using an LCD.
7/18 and 25/30
35/90 > 75/90
What is the prime factorization of 99?
3^2 x 11
What is the LCM of
#1: 2^2 x 3^3 x 5^5 x 7^7
#2: 2 x 3 x 5^2 x 11
2^2 x 3^3 x 5^5 x 7^7 x 11
Convert 12345/2 into a mixed number
6172 1/2
Which one is larger: 11/17 or 8/20?
8/20
What is the LCD of 2/11 and 3/7?
11 x 7 = 77