you divide the numerator by the denominator, if you get the same to the other fractions, it is proportional. Another solution is if you reduce the two fractions to simplest form and they are the same, they are also proportional.
set up a proportion and see if both sides simplify to the same answer. If the 2 ratios represent a constant ratio they will simplify into fractions
You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
Two ratios, a:b and c:d are proportional if there is some number x such that a = cx and b = dx. Equivalently, if ad = bc (each is equal to cdx).
Yes
They are equivalent.
look at the ratios and multiply
The fractions are proportional and their cross products are equal
For proportional relationships the ratio is a constant.
set up a proportion and see if both sides simplify to the same answer. If the 2 ratios represent a constant ratio they will simplify into fractions
You CAN'T determine whether two numbers are proportional, just by looking at one number from each set.
They are said to be proportional.
you have to times and get the answer correct or not
No.
Two ratios, a:b and c:d are proportional if there is some number x such that a = cx and b = dx. Equivalently, if ad = bc (each is equal to cdx).
yes, they are.
Yes
They are equivalent.