Download presentation

Presentation is loading. Please wait.

Published byRalph Mitchell Modified over 6 years ago

1
Ratios and Rates

2
ratio – a comparison of two numbers by division written in several different forms.

3
Ratios and Rates rate – a ratio that compares different kinds of units by division to obtain a unit rate or rate per unit.

4
Ratios and Rates The order of the numbers in a ratio should match the order of the words in a ratio. apples to oranges 2 to 3

5
Ratios and Rates Ratios can be written in several different ways. 3 to 1 3 : 1 3/13/1 red to white

6
Ratios and Rates Ratios can show comparisons between: part to part red to green 1 to 2 green to red 2 to 1

7
Ratios and Rates Ratios can show comparisons between: part to whole red to whole 1 to 3 green to whole 2 to 3

8
Ratios and Rates Ratios can show comparisons between: whole to part whole to red 3 to 1 whole to green 3 to 2

9
Ratios and Rates Compare octagon to all shapes 1 to 8 1 out of 8 1 : 8 1/81/8

10
Ratios and Rates Compare all shapes to trapezoid 8 to 18 : 1 8/18/1

11
Ratios and Rates Compare pentagons to hexagons 2 to 32 : 32 : 3 2/32/3

12
Ratios and Rates Give each ratio in three forms. 8 roses out of 24 flowers 8 to 248 : 24 3 dogs out of 12 animals 3 to 123 : 12

13
Ratios and Rates A ratio in fraction form can be expressed in simplest form by dividing the numerator and denominator by a common factor. ÷ 8 = ÷ 3 =

14
Ratios and Rates To express a ratio as a rate per unit, write the ratio as a fraction and then divide the numerator by the denominator. 395 miles in 5 hours = 79 miles per hour miles hours miles hours

15
Ratios and Rates Express each ratio as a rate. 5 inches of rain in 30 days = inch of rain per day 120 words in 3 minutes = 40 words per minute words per minute ÷ 5

Similar presentations

© 2021 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google