what is ratio?

Question

can somebody answer

Answer 1

Answer is here:

http://www.mathleague.com/help/ratio/ratio.htm

Answer 2

A ratio is a quantity that denotes the proportional amount or magnitude of one quantity relative to another
Ratios are unitless when they relate quantities of the same dimension. When the two quantities being compared are of different types, the units are the first quantity "per" unit of the second — for example, a speed or velocity can be expressed in "miles per hour". If the second unit is a measure of time, we call this type of ratio a rate.

Fractions and percentages are both specific applications of ratios. Fractions relate the part (the numerator) to the whole (the denominator) while percentages indicate parts per 100.

A ratio can be written as two numbers separated by a colon (:) which is read as the word "to". For example, a ratio of 2:3 ("two to three") means that the whole is made up of 2 parts of one thing and 3 parts of another — thus, the whole contains five parts in all. To be specific, if a basket contains 2 apples and 3 oranges, then the ratio of apples to oranges is 2:3. If another 2 apples and 3 oranges are added to the basket, then it will contain 4 apples and 6 oranges, resulting in a ratio of 4:6, which is equivalent to a ratio of 2:3 (thus ratios "reduce" like regular fractions). In this case, 2/5 or 40% of the fruit are apples and 3/5 or 60% are oranges in the basket.

Note that in the previous example the proportion of apples in the basket is 2/5 ("two of five" fruits, "two out of five" fruits, "two fifths" of the fruits, or 40% of the fruits). Thus a proportion compares part to whole instead of part to part.

Throughout the physical sciences, ratios of physical quantities are treated as real numbers. For example, the ratio of 2π metres to 1 metre (say, the ratio of the circumference of a certain circle to its radius) is the real number 2π. That is, 2πm/1m = 2π. Accordingly, the classical definition of measurement is the estimation of a ratio between a quantity and a unit of the same kind of quantity. (See also the article on commensurability in mathematics.)

In algebra, two quantities having a constant ratio are in a special kind of linear relationship called proportionality.

Answer 3

Ratio is basically dividing two numbers by eachother.
The ratio of two quantities, say a and b is a/b. By
taking the ratio it is easier to see how big they are in
relation to eachother. If the ratio is two, I know right away that one number is twice as large as the other.
Consider the ratio a/b:
If the ratio is larger than one, I know a>b
If the ratio is smaller than one, I know a Ratios can also be expressed as a:b

Answer 4

ratio is a concept... like numbers...
one talks about the ratio between two quantities...
for example, twice as many is equivalent to the ratio 2:1
three times as many is equivalent to 3:1
half as much is 1:2

it's just a different way of thinking about fractions really...

if i have 10 apples and you have 3, then the ratio between the respective amount of apples we have is 10:3

Answer 5

translation tip:
ratio = (number of something)/ (number of other thing)
ratio is usually written as a fraction.

Example:

In a class, there are 12 boys and 15 girls.
The ratio of boys to girls is
= (number of boys) / (number of girls)
= 12/15
= 4/5

ratio = 4/5

Answer 6

It is basically a fraction

It means a number of something per number of something else

For example 5 apples:3 oranges means there are 5 apples PER 3 oranges