Why is the product of two rational numbers always rational?
select from the drop-down menus to correctly complete the proof.
let
and
represent two rational numbers. this means a, b, c, and
choose
and choose
the product of th
is not 0. because integers are closed under choose
making it a rational number

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .