To find how many 3/4 are in 10/9, it means that we would divide 10/9 by 3/4
Thus,
number of 3/4 in 10/9 = 10/9 ÷ 3/4
If we flip 3/4 such that it becomes 4/3, the division sign would change to multiplication sign. Thus, the multiplication equation is
number of 3/4 in 10/9 = 10/9 x 4/3