ratios and rates -...
TRANSCRIPT
![Page 1: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/1.jpg)
Ratios and Rates
![Page 2: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/2.jpg)
Ratios and Rates
ratio – a comparison of two
numbers by division written
in several different forms.
That
This
That
This
![Page 3: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/3.jpg)
Ratios and Rates
rate – a ratio that compares
different kinds of units by
division to obtain a unit rate
or rate per unit.
![Page 4: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/4.jpg)
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
![Page 5: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/5.jpg)
Ratios and RatesRatios can be written in
several different ways.
3 to 1
3 : 1
3/1
red to white
![Page 6: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/6.jpg)
Ratios and Rates
Ratios can show comparisons
between:
part to part
red to green
1 to 2
green to red
2 to 1
![Page 7: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/7.jpg)
Ratios and Rates
Ratios can show comparisons
between:
part to whole
red to whole
1 to 3
green to whole
2 to 3
![Page 8: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/8.jpg)
Ratios and Rates
Ratios can show comparisons
between:
whole to part
whole to red
3 to 1
whole to green
3 to 2
![Page 9: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/9.jpg)
Ratios and Rates
Compare octagon to all shapes
1 to 8
1 out of 8 1 : 8
1/8
![Page 10: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/10.jpg)
Ratios and Rates
Compare all shapes to trapezoid
8 to 1 8 : 1 8/1
![Page 11: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/11.jpg)
Ratios and Rates
Compare pentagons to hexagons
2 to 3 2 : 3 2/3
![Page 12: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/12.jpg)
Ratios and Rates
Give each ratio in three forms.
8 roses out of 24 flowers
8 to 24 8 : 2424
8
3 dogs out of 12 animals
3 to 12 3 : 1212
3
![Page 13: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/13.jpg)
Ratios and RatesA ratio in fraction form can be
expressed in simplest form by
dividing the numerator and
denominator by a common
factor.
24
8 ÷ 8
÷ 8
=
3
1
12
3 ÷ 3
÷ 3
=
4
1
![Page 14: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/14.jpg)
Ratios and RatesTo 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
5
395=
79 miles
per hour
miles
hours 1
? miles
hours
![Page 15: Ratios and Rates - pcisteam6e.weebly.compcisteam6e.weebly.com/uploads/3/1/9/8/31981623/ratios_and_rates… · Ratios and Rates A ratio in fraction form can be expressed in simplest](https://reader035.vdocument.in/reader035/viewer/2022062607/6056f1dd72040525021ee886/html5/thumbnails/15.jpg)
Ratios and RatesExpress each ratio as a rate.
5 inches of rain in 30 days
30
5=
6
1inch of rain per day
120 words in 3 minutes
3
120=
40 words
per minute1
? wordsper minute
÷ 5
÷ 5