How do you add time on a calculator?

How do you add time on a calculator?

For example, add the times 1:30:45 and 2:45:20 together.

  1. Add hours, minutes, and seconds separately: hours = 1 + 2 = 3 hours.
  2. Seconds are greater than 60, so add 1 minute and subtract 60 seconds: minutes = 75 + 1 = 76 minutes.
  3. Minutes are greater than 60, so add 1 hour and subtract 60 minutes: hours = 3 + 1 = 4 hours.

How do you add up hours together?

Add the hours together….If the number of minutes is 60 or more do the following:

  1. Subtract 60 from the number of minutes. (68 minutes – 60 minutes = 8 minutes)
  2. Increase the number of hours by one. (6 hours + 1 hour = 7 hours)
  3. Repeat this process if the number of minutes is still 60 or more.

How do you add up minutes and seconds?

How to add minutes and seconds:

  1. Add the minutes together.
  2. Add the seconds together.
  3. If the number of seconds is 60 or more, regroup the seconds into minutes: Subtract 60 from the seconds. Add 1 to the minutes. Repeat until the seconds are less than 60.

What is 2 hours and 20 minutes as a decimal?

Time to Decimal Conversion Table

Time Hours Minutes
/b> 2.333333 140
/b> 2.416667 145
/b> 2.5 150
/b> 2.583333 155

What is the decimal for 20 minutes?

0.333

What does 0.75 mean in hours?

Hours Minutes
0.75 45
0.80 48
0.85 51
0.90 54

How do you measure 45 minutes with 2 wires?

It will take exactly half the original time, i.e. 30 minutes to burn completely.

  1. 0 minutes – Light stick 1 on both sides and stick 2 on one side.
  2. 30 minutes – Stick 1 will be burnt out. Light the other end of stick 2.
  3. 45 minutes – Stick 2 will be burnt out. Thus 45 minutes is completely measured.

What does 45 to an hour mean?

45 minutes to an hour = a period of between 45 and 60 minutes.

Is it in a hour or in an hour?

Because hour is typically pronounced with a silent h, an hour is correct. I wrote a blog post about an vs a on the EL&U blog some time ago, and it covers a wide variety of other cases that you might be interested in. An hour is correct, because “hour” begins with a vowel sound.