12/3 + 4 7/9 the answer has to be a faction

1 2/3 You take the 3 denominator multiply by 1 and add 2. you should get 5/3

4 7/9 you take the 9 multiply it by 4 and add 7. you should get 43/9

Then you need to find the common denominator to 5/3 multiply 3/3. you should get 15/9.

Now you can add 15/9 and 43/9 which equals

58/9 as an improper fraction but if you wanted a mix number its 6 4/9

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.