Hint: We know that one minute has 60 seconds. In other words, we can say that 60 seconds make a minute.So, first of all we will convert one minute into seconds. Then we will solve further.
Complete Step-by-Step solution: As mentioned in the hint provided above, 1 minute is equal to 60 seconds. In other words, we can say that a minute consists of 60 seconds. 1 Minute = 60 seconds We have to express 20 seconds as a fraction of one minute that means we need to express 20 seconds as a fraction of 60 seconds. \[\dfrac{20}{60}=\dfrac{2}{6}=\dfrac{1}{3}\] Therefore, the answer of this question is \[\dfrac{1}{3}\] , i.e. 20 seconds as a fraction of one minute is equal to \[\dfrac{1}{3}\].
Note: The students can make an error if they do not know the number of seconds in a minute. It is very important to memorize all these conversions as they can come in handy. Here are some of the important conversions:- 1. 1 MINUTE = 60 SECONDS 2. 1 HOUR = 60 MINUTES 3. 1 HOUR = 3600 SECONDS 4. 1 DAY = 24 HOURS 5. 1 WEEK = 7 DAYS 6. 1 YEAR = 365/366 DAYS It is very important to remember all of these conversions as they can come in handy.