35 days in 7 weeks proportion

So if you mean 35 day to 7 weeks in proportion

one way is to divide 35 and 7 by 7 and get 5 days to 1 week or 5 days to 7 days or 5:7

or you could convert to the same unit (days)

1 week=7 days

7 weeks=49 days (7 times 7)

35:49

factor

35=5 times 7

49=7 times 7

so factor out the 7 and get

5:7 days