LCM and GCF
What is the GCF of 108 and 72?
36
Consider the expression 3039 ÷ 17. Write an estimated number sentence where the quotient would be 200.
3000 ÷ 15 = 200
Why do I know that 53.1 ÷ 5.2 will be the same as 531 ÷ 52.?
I know they will have the same answer because they are equivalent fractions.
Which of the following pairs have the GCF of 4?
A. 8 and 36
B. 4 and 8
C. 40 and 16
D. 40 and 28
B and D
(A. GCF = 8, C. GCF = 8)
1470 ÷ 245
6
Write three fraction equivalencies for the number sentence 53.1 ÷ 23.01
5310/2301
53100/23010
10620/4602
Consider the expression 36 + 90. If we're using GCF, what numbers should replace a and b for the following number sentence?
a(4 + b)
a = 9
b = 10
2646 ÷ 42
63
Write what to replace a and b with to get an equivalent fraction that has whole numbers for the numerator and denominator:
43.2/1.023 x a/b = ?
Jordan has 96 pencils and 64 stickers and wants to give the same amount of pencils and the same amount of stickers to each friend. How many friends can he give these pencils and stickers to so everyone has an even amount of both?
32 friends (3 pencils and 2 stickers each)
120.24 ÷ 5.01
24
Jessica wants to buy candy for all of her friends, Each piece costs $3.20. She knows the total is going to come out to $48. How many friends can she buy candy for?
15 friends