For example, you might be converting 2,400 seconds into hours.
For example, 2,4003,600=0. 6667{\displaystyle {\frac {2,400}{3,600}}=0. 6667}. So, 2,400 seconds is equal to 0. 6667 hours. As another example, 5,6003,600=1. 5556{\displaystyle {\frac {5,600}{3,600}}=1. 5556}. So, 5,600 seconds is equal to 1. 5556 hours.
For example, 0. 6667×60=40{\displaystyle 0. 6667\times 60=40}. So, 2,400 seconds is equal to . 6667 hours, or 40 minutes. For your second example, you have 1 whole hour, plus 0. 5556 of an hour. So, you only need to convert 0. 5556 to an hour: 0. 5556×60=33. 336{\displaystyle 0. 5556\times 60=33. 336}. So, 5,600 seconds is equal to about 1 hour, 33 minutes.
For example, if you are converting 9,000 seconds to hours, write “9,000” in the first row, second column of your table.
For example, if you are converting 9,000 seconds, you would calculate 9,00060=150{\displaystyle {\frac {9,000}{60}}=150}. So, the factor of change is 150.
For example, 1×150=150{\displaystyle 1\times 150=150}. So, 9,000 seconds is equal to 150 minutes.
For example, if you converted 9,000 seconds to 150 minutes, you are now converting 150 minutes to a number of hours. In your table, you need to find the factor of change from 60 minutes to 150 minutes. Since 15060=2. 5{\displaystyle {\frac {150}{60}}=2. 5}, your factor of change is 2. 5. Multiply this by 1 hour. 1×2. 5=2. 5{\displaystyle 1\times 2. 5=2. 5}. So, 9,000seconds=150minutes=2. 5hours{\displaystyle 9,000;{\text{seconds}}=150;{\text{minutes}}=2. 5;{\text{hours}}}.
Divide 12,400 by 3,600, the number of seconds in 1 hour: 12,4003,600=3. 4445{\displaystyle {\frac {12,400}{3,600}}=3. 4445}. Convert the decimal of an hour to minutes. To do this, multiply the decimal by 60: . 4444×60=26. 664{\displaystyle . 4444\times 60=26. 664}, or about 26 minutes. So, 12,400 seconds is equal to about 3 hours and 26 minutes.
Divide 14 by 3,600: 143600=. 0038889{\displaystyle {\frac {14}{3600}}=. 0038889}. So, Kristin ran the sprint in about 4 thousandths of an hour.
Set up a table. In the first column, write the unit rate of 60 seconds per 1 minute. In the second column, write the number of seconds you are converting: 5,000. Find the factor of change by dividing the number of seconds you are converting by 60: 500060=83. 3334{\displaystyle {\frac {5000}{60}}=83. 3334}. Set up another table. In the first column, write the unit rate of 60 minutes per 1 hour. In the second column, write the number of minutes you are converting: 83. 3334. Find the factor of change by dividing the number of minutes you are converting by 60: 83. 333460=1. 38889{\displaystyle {\frac {83. 3334}{60}}=1. 38889}. So, 5,000seconds=83. 3334minutes=1. 3889hours{\displaystyle 5,000;{\text{seconds}}=83. 3334;{\text{minutes}}=1. 3889;{\text{hours}}}.
