What is a Ratio in Math? Understand Ratio & Proportion - [6-3-1]
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- Опубліковано 3 лип 2024
- More Lessons: www.MathAndScience.com
Twitter: / jasongibsonmath
In this lesson, you will learn what a ratio is and why we use ratios in math. You will also learn how to represent a ratio as a fraction and also how to write a ratio in colon notation. A ratio is a comparison between two numbers. A proportion is when two ratios are equal to one another. For example, if we have a room with 10 boys and 5 girls, we might write the ratio of boys to girls as 10:5, or as a fraction, 10/5. We can then simplify this ratio just like we simplify any fraction down to the simplest ratio, 2/1 in this case. This ratio indicates that in this room there are 2 boys for every 1 girl. We use ratios in all math subject areas to solve a wide variety of problems.
![What is a Proportion in Math? Calculate & Solve Proportions & Equations - [6-3-3]](http://i.ytimg.com/vi/NdTyKTe0yxc/mqdefault.jpg)
![What is a Proportion in Math? Calculate & Solve Proportions & Equations - [6-3-3]](/img/tr.png)
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Your math teacher did what your brain could understand. 500 +500=1000.
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ratio
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Ratio
Counter
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Thanks for Understanding me I was so confused of what my teacher said to me about ratio
so are just doing smallest on the top of the fraction and biggest on the bottom or is it boys on the top
and girls on the bottom?
And you are very good at this keep teaching all of us we need stuff luke this hehe...
There are also ratio problems that are given in word problem asking to give the ratio of an unknown item, giving the number for one of the items & also the total for both items.
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@@MathAndScience ratio
This has been eye opening. I wondered if you could help me out on this. I struggled between ratio and fraction. The denominator of fraction means out of or how many parts is divided into , whilst ratio is comparison. Yet they can be written the same way. Why is this and how can I tell the difference when I am looking at denominator of fraction wether is ratio or fraction if they can be written in the same way?
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Good evening teacher
The ratio of 3 boys to 6 girls is not a fraction. It is a part to part ratio - fractions are part to whole! We have to be careful with our language. Another thing is that we are not "simplifying" as much as we are scaling up or down. This language helps build conceptual understanding.
and you came here to say this why? many understand and are learning and that's all that matter. I didn't get math at all but he made it seem easy.
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very useful video
How would you know what number to simplified with?
thank you
True
have any videos for dimensional analysis?
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This is a ratio
How do you get the number that you divide with 😢???
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@@MathAndScience E=mc2 is F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/energy, AS E=MC2 IS F=MA. The Earth (A PLANET) is a MIDDLE DISTANCE form that is in BALANCED relation to the Sun AND the speed of light (c), AS the stars AND PLANETS are POINTS in the night sky; AS E=MC2 IS F=MA; AS TIME DILATION ultimately proves ON BALANCE that ELECTROMAGNETISM/energy is gravity. Indeed, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS E=MC2 IS F=MA; AS ELECTROMAGNETISM/ENERGY IS GRAVITY.
GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=mc2 is F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=MA ON BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Accordingly, the rotation of WHAT IS THE MOON matches it's revolution. MOREOVER, a given PLANET (INCLUDING WHAT IS THE EARTH) sweeps out EQUAL AREAS in equal times consistent WITH/AS F=ma, E=mc2, AND what is perpetual motion; AS E=MC2 IS F=MA ON BALANCE; AS ELECTROMAGNETISM/ENERGY IS GRAVITY.
By Frank DiMeglio
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I learned my math from Jan & Dean,
'Two girls for every boy'🎶
Surf City
Math would have been my favorite subject had you been my math teacher then.
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What do you do if u can't simplify?
At 3:48 he explains it😊
How do you know what to divide them by.?
This helped me alot tomorrow is my exam
Yes I understand
Understand this ratio
"Ratio is a comparison of two numbers" is the most brilliant statement I've heard in a long time. It's kind of obvious when you think about it after, but to put it in these words takes a genius. However, I object of saying the 3:6 is the same as 1:2. Following your thought, these are two separate comparisons, they may be algebraically equivalent, but when you reduce the ratio you lose original information. Which might be undesired. Reduction is just another mathematical tool that you ,ay could want to use. Or not.
I think the point that's being made is that ratios are -specifically- the comparison between two numbers, not the numbers themselves.
There are valid reasons to retain the information and you may choose to write your ratio with the original numbers or record the two numbers as well as the ratio, but -as far as a ratio is concerned-, 3:6 IS the same as 1:2; they're mathematically identical.
I support u. 3:6 is never equal to 1:2 but they may be equivalent to each other .
OK I understand it but how did you divide 4÷2 how did you get 2
5:26 1:5.2
For every 5 inches is 26 feet
For every 1 inch is 5.2 feet
1:2
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@@gucciashton4731 in your opinion. It's not rational he is not the smartiedt
If anyone could help me out, it would ve much appreciated thanks :) See below:
I don’t like to use calc and want to do as much as possible without it.
How can I shorten these fractions?
126 / 294 & 308 / 231
Easily, because when it comes to big numbers like this, I have to spend lots of time shortening them. Its really difficult.
same so ima just gonna go to sleep
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inspire this ratio
Sir please help me thi sum i can't understand
Sudha has $5 with radha is 3 times tha money with sudha .how much money....
What is the ratio of radha and sudha's money?
What is the ratio of sudha's money and radha's money?
Thank you so much. You have explained ratio so well that it becomes very much easy to deal with. I used to struggle solving ratio, but after watching your video I have a much better understanding.
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If I have a question
2:3
Excuse me does ratio involve only 2 nos? Not 3 or 4??
what is the ratio of 29 to 21? is that correct to write 1.4:1?
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Is it mondatory to take a smaller number first and then larger number for comparison? Ratio of
1 million to 1 billion=10^6/10^9=1/1000 or 1:1000.
Ratio of 10 feet to 20 inches= 10/20=1/2 or 1:2.
no
Thank 0:36
What if there is no common denominator to simplify the ratio?
If you mean that your ratio of two numbers is in fraction form, just simplify the fractions by inverse multiplying both nominator and denominator by the denominator fraction and you will get your simplified ratio.