math ratios and rates

Question

While researching universities joe learns that a typical class at york university has 7 men and 4 women, and a typical class at the university of toronto has 19 men and 9 women. Do the universities have different ratios of men to women?

Answer 1

(7 / 4) = (19 / 9) 36 is LCD

36(7 / 4) = 36(19 / 9)

(9)(7) = (4)(19)

63 = 76

No, the ratios are not equal

Answer 2

Yes, they do, since ratio of York = 7/4 = 1.75 =/= 2.11 ≈ 19/9 = ratio of Toronto.