Answer:
Here are the ratios written in simplest form:
2 feet to 40 inches = 1:20
72 millimeters to 3 meters = 24:1
12 cups to 2 pints = 6:1
42 seconds to 2 minutes = 7:2
10 inches to 1 yard = 10:36
1 mile to 800 feet = 4:3
6 gallons to 15 quarts = 6:15
20 hours to 4 days = 5:1
3 meters to 108 centimeters = 3:108
48 ounces to 5 pounds = 24:5
7 cups to 20 ounces = 35:20
2 years to 16 months = 2:16
Explanation: