What is the whole number or simplified answer to 3/35 divided by 9/7

(3/35) / (9/7)

= 3/35 * 7/9
= 3*7 / 35*9
= 3*7 / 5*7*3*3
= 1 / 5*3
= 1/15

or, you could do it

(3/35) / (45/35)
= 3/45
= 1/15