Verified Answer :

We have 45:60 ratio. As we know 45:60 can be denoted as \(\frac{45}{60}\)
Now we just have to simplify the fraction.
\(\frac{45}{60}= \frac{45:15}{60:15} = \frac{3}{4}\) - its the answer

The ratio for 45 and 60

45:60=45/60
/15
3:4=3/4

three fourths