Ethan writes 1/6 of a page in 1/12 of a minute. How much time does it take him to write a full page?

(1/6) / (1/12) = 1/x ... 1/6 pg to 1/12 min = 1 pg to x min

cross multiply

(1/6) (x) = (1/12) (1)

1/6x = 1/12 ... multiply by 6, cancelling out the 1/6 on the left side

x = 1/12 * 6

x = 6/12 reduces to 1/2 min <===

I think its 7 hours and a half (30 minutes)