Question

How many quarters does an hour have?

Name all the quarters of an hour.

Answer 1

4 the hour a quarter past the hour, half hour, a quarter till the hour.

Explanation:

An quarter of an hour is 15 mins.

`60/15= 4` so there are 4 quarters in an hour.

15 mins past the hour is the first quarter.

Another 15 mins equals 30 mins.

`15 + 15 = 30`

`30/60 =1/2`

so half an hour is the second quarter

Another 15 mins equals 45 mins

`15 + 15 + 15 = 45`
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`60- 45 = 15`

so 15 mins before the hour is the third quarter.

Another 15 mins equals the hour

`15+ 15+ 15+ 15 = 60`

60 mins = an hour

so the hour itself is the fourth quarter.

Answer 2

There are therefore four `1/4` in an hour.

Explanation:

Any whole will have four quarters.

In telling the time we use the phrases "quarter past. half past and quarter to"

As there are `60` minutes in an hour, every 15 minutes represents `1/4` of the hour.

When the minute hand reaches `3` we say it is `1/4` past the hour.

When the minute hand reaches `6` we say it is `1/2` past the hour.

When the minute hand reaches `9` we say it is `1/4` to the next hour. (`3/4` after the previous hour)

When the minute hand reaches `12` we say it is 'o'clock' meaning that a full hour of the clock has past.

There are therefore four `1/4` in an hour.