1.3 hours is 78 minutes .
The difference between 1.30 hours and I hour 30 minutes. 0.3 hour = hour. hour = 60 = 18 minutes. 1.30 hours = 60 min + 18 min = 78 min .
You can use a scientific calculator with a degrees function as described above, or you can do a bit more maths. We can convert 0.5 hours into minutes. 1.5 hours is therefore 1 hour and 30 minutes .
| Time Hours Minutes | 01:10:00 1.167 hrs 70 min | 01:20:00 1.333 hrs 80 min | 01:30:00 1.5 hrs 90 min | 01:40:00 1.667 hrs 100 min |
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0.1 hours = 6 minutes .
| Minutes Decimal Conversion | 19 0.32 | 20 0.33 | 21 0.35 | 22 0.37 |
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For partial-hour quantities other than 30 minutes, I would avoid other decimal fractions unless times are being measured in six-minute or 36-second intervals, but . 5 is so idiomatic as “one half” that I would consider “1.5 hours” to be more readable than “1 hour and 30 minutes” or “1 1/2 hours”, or even “11⁄2 hours”.
Agree with vanessa_t. One other way to say 90 mins is “ an hour and a half ,” which maybe is easier to confuse with “half an hour” (30 mins).
An hour and a half = 1 hour + 1 half (of an hour) = 90 minutes . . The meaning of “an hour and a half” is exactly the same as “one and a half hours”. The amount of time is identical, but the two structures are different.
It is “one and a half hours” because you have more than one hour ( one hour plus half an hour ) hence implying that it is plural and not just a single hour. both “one” and “a half” are describing the noun “hour”, so two. the other way that it could be stated is “one hour and a half”.
For example, 30 minutes equals 50 percent of an hour, while 10 minutes equals about 17 percent of an hour.
Answer: 3/2 as a decimal is expressed as 1.5 .
To convert time to just hours:
2 hours is 2 hours * (1 hour/ 1 hour) = 2 hours. 45 minutes is 45 minutes * (1 hour / 60 minutes) = 45/60 hours = 0.75 hours .
There are 60 minutes in 1 hour. To convert from minutes to hours, divide the number of minutes by 60. For example, 120 minutes equals 2 hours because 120/60=2.
Answer: 42 minutes . Hope this is helpful.
| Minutes to be reported ___________ Tenth of Hour reported ___________ Minutes to be reported ___________ | 8 min. 0.1 28 min. | 9 min. 0.2 29 min. | 10 min. 0.2 30 min. | 11 min. 0.2 31 min. |
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