7÷3×5x÷12. can someone me multiply rational expressions and divide rational expressions? and you.

In this case, because there are no exponents or brackets, (BEDMAS) you would just do it in the order given. 

7÷3×5x÷12= 7×1/3 × 5x × 1/12
To divide, make the numbers after the divide sign into fractions.(ex: 3= 1/3)
Then multiply it out:
                = 7/3 × 5x/12
                = 35x/34
Then because the numerator is bigger then the denominator, make the improper
fraction into a mixed fraction:
                = 1 1x/34

Hope this helps! 

7 ÷ 3 · 5x ÷ 12
7 ÷ 15x ÷ 12
7 ÷ 5x/4
28x/5