

Ratios and Equivalent Ratios
Presentation
•
Mathematics
•
5th - 8th Grade
•
Medium
+2
Standards-aligned
Ally Carby
Used 201+ times
FREE Resource
5 Slides • 23 Questions
1
Ratios and Equivalent Ratios
Carby: Grade 8

2
Remember ..
Ratios are just comparing things. You have to look at what is given to you and write your findings as a ratio or fraction.
3
Multiple Choice
What is a ratio?
A number over another number
Multiplying two fractions
Two decimals that are multiplied
A comparison of two numbers
4
Multiple Choice
5
Multiple Choice
6
Press play to listen to instructions!
7
Multiple Choice
A cookie recipe calls for 3 cups of flour and 2 cups of chocolate chips. What is the ratio of chocolate chips to flour?
3 : 2
3 to 2
6 : 4
2 : 3
8
Multiple Choice
9
Equivalent Ratios
Remember that you can re-write ratios as fractions. Once they are a fraction, you can find something equivalent by either MULTIPLYING or DIVIDING.
10
Equivalent Ratios
You can use both multiplying and dividing to find equivalent ratios.
If you are multiplying your ratio will get BIGGER, if you are dividing your ratio will get SMALLER.
11
Multiple Select
How do you find equivalent ratios?
Multiplying both sides of the ratio
Dividing both sides of the ratio
adding both sides of the ratio
subtracting both sides of the ratio
12
Multiple Choice
Thinking of equivalent ratios, 1 : 4 is equal to:
2 : 9
4 : 16
6 : 26
8 : 40
13
Multiple Choice
Find one equivalent ratio for 15 : 30 using division
7 : 15
5 : 10
3 : 5
14
Multiple Select
Find two equivalent ratios for 3 : 4 using multiplication
6 : 8
6 : 12
9 : 12
15
Multiple Choice
Joe has 11 Playstation 4 games and 13 Nintendo games. What is the ratio of PS4 games to Nintendo games?
5:7
1 to 3
13/11
11/13
16
Multiple Choice
63 : 21 = _ : 3
7
8
9
10
17
Multiple Choice
In the equivalent ratios below, what did we multiply by to get the ratio on the bottom?
9 : 4
45 : 20
6
5
8
3
18
Multiple Choice
Are 14 : 18 and 7 : 9 equivalent ratios?
Yes
No
19
Multiple Choice
Are 4 : 5 and 8 : 15 equivalent ratios?
Yes
No
20
Multiple Choice
Are 1 : 2 and 2 : 4 equivalent ratios?
Yes
No
21
Multiple Choice
Find one equivalent ratio for 5 : 8 using multiplication
10 : 24
15 : 24
15 : 16
22
Multiple Choice
$15 for 5 pairs of socks; $25 for 10 pairs of socks
yes, equivalent
no, not equivalent
23
Multiple Choice
Enrique is making cakes.
Based on the table, how many eggs will Enrique need to make 7 cakes?
11
28
32
40
24
Multiple Choice
In the fruit bowl there are 4 apples, 2 bananas, and 5 pears. What is the ratio of pears to ALL fruit?
5:4
5:11
2:5
6:5
25
Multiple Choice
For a recipe, George uses 4 cups of sugar for every 5 cups of flour. Which of the following show equivalent ratios for sugar to flour?
4/5=8/10 =12/15
4/5 = 5/6 = 6/7
4/5 = 3/4 = 2/3
4/5=8/15=16/45
26
Poll
I understand how to find equivalent ratios
Definitely, I could get 100% on a test!
Yeah, I pretty much get it
Nooo! I need help :(
27
Poll
Did you like this type of lesson?
yes
meh.. no
28
Poll
Should I make more lessons in this style?
Yes!! :)
No :(
Ratios and Equivalent Ratios
Carby: Grade 8

Show answer
Auto Play
Slide 1 / 28
SLIDE
Similar Resources on Wayground
20 questions
Topic 1.4 - 1.6 - Dividing Fractions and Mixed Numbers
Presentation
•
5th - 8th Grade
23 questions
Operations with Integers
Presentation
•
5th - 8th Grade
21 questions
Measures of Center
Presentation
•
6th - 8th Grade
21 questions
Review 7.3-1 Ratios & Proportions
Presentation
•
6th - 8th Grade
20 questions
Estimating Square Roots
Presentation
•
6th - 8th Grade
20 questions
Desmos Grade 7 - Unit 8 Review
Presentation
•
6th - 8th Grade
25 questions
Mixed and Improper Fractions Lesson - Review
Presentation
•
5th - 8th Grade
19 questions
Intro to Integers
Presentation
•
5th - 7th Grade
Popular Resources on Wayground
24 questions
PBIS-HGMS Day 10
Quiz
•
6th - 8th Grade
10 questions
HCS SCI 03 Summer School Review 3
Quiz
•
3rd Grade
11 questions
Home Scope
Quiz
•
7th - 8th Grade
15 questions
HCS SCI 05 Summer School Assessment 3 Review
Quiz
•
5th Grade
35 questions
Lufkin Road Middle School Student Handbook & Policies Assessment
Quiz
•
7th Grade
18 questions
Geo 11.3 Area of Circles and Sectors
Quiz
•
9th - 11th Grade