To compare ratios, compare the products of the outer terms by the inner terms.
they both have the same ratios
There are no ratios that can be used for triangles that are not similar.
Ratios are used to compare numbers. When you're working with ratios, it's sometimes easier to work with an equivalent ratio.
yes
Treat the ratios as fractions. One way you can compare them is to convert them to decimal (divide the numerator by the denominator, or the first number of the ratio by the second number), then compare. Another way is to find a common denominator, then compare the numerators.
they both have the same ratios
There are no ratios that can be used for triangles that are not similar.
At constant temperature and pressure the ratios are equal.
Ratios are used to compare numbers. When you're working with ratios, it's sometimes easier to work with an equivalent ratio.
You can compare the ounces.
yes
Treat the ratios as fractions. One way you can compare them is to convert them to decimal (divide the numerator by the denominator, or the first number of the ratio by the second number), then compare. Another way is to find a common denominator, then compare the numerators.
Only 2
Proportion (i think...)
they show us how to compare things
Ratios are about comparison, one number to another. You can't have a ratio from only one number, as there isn't anything to compare it to.
With probability ratios the value you get to describe the strength of the relationship when you compare (A given B) to (A given not B) is not the same as what you get when you compare (not A given B) to (not A given not B). This is, IMHO, a big problem. There is no such problem with odds ratios.