Question

find the ratio 45 seconds 2 hours​

Answer 1

Answer:

they are not in same units so convert them into same units

2 hours=7200 seconds

45sec:7200sec

9:1440

1:160=160

Answer 2

Answer:

$45 \: seconds \: \\ 2 \: hours = 2 \times 60 \\ = 120 \: minutes \\ = 120 \times 60 \\ = 7200 \: seconds \\ so \: \frac{45}{7200} = \frac{1}{160}$

1/160=1:160