Ratio
Ratio of slashes to number signs
# # # # # # # # / / / / /
5 : 8
2:3 = _ : 9
6
The ratio of boys to girls is 2:3. If there are 25 students, how many are boys?
10 boys
100 words in 5 mins
20 words per minute
What is the GCF of 36 and 42?
6
Ratio of slashes to total symbols
# / / / # # # / #
4 : 9
4 : 3 = 12 : _
9
The ratio of dogs to cats is 3:1. If there are 9 dogs, how many cats are there?
3 cats
300 miles in 6 hours
50 miles per hour
What is the least common multiple of 6 and 4?
24
B B B G G G G B B B B
Ratio of girls to total written in 2 ways
4 to 11
4:11
4/11
25 : 10 = 50 : __
20
The ratio of teachers to students is 2 to 5. If there are 49 people going on the field trip, how many are students?
35 students
$45 for 3 pounds of chicken
$15 per pound
Which is a better deal?
A: 4 cans for $17
B: 5 cans for $20
B
Ratio of B to G written 3 ways
B B G G B G G G
3 to 5
3:5
3/5
18 : 12 = __ : 4
6
There are 108 students in grades six and seven. If the ration is 4:5, how many students are in grade 6?
48 students in grade 6
$43.50 for 6 tickets
$7.25 per ticket
GCF of 21 and 49
7
Ratio of G to Total students written 3 ways
G G G G B B B B B G B
5 to 11
5:11
5/11
100 : ___ = 20 : 6
30
There are 75 balloons; the ratio of red to green balloons is 2:3, how many red balloons are there and how many green balloons?
30 red balloons
45 green balloons
$24.50 for 5 binders
$4.90 per binder
If you walk 5 dogs for $30, how many dogs do you have to walk to make $48?
8 dogs