3 x 7/9 = 21/27? is it correct? Explain why?

it is not correct because

is like saying

which would be

but since it is an improper fraction you have to change it to a mixed fraction which would be

which can be simplified to

Step-by-step explanation:

hope this was helpful

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}