Paul read his library book for 4/5 hour on Thursday, 1/6 hours on Friday, and 2/5 hour on Saturday. About how long did Paul read his library book for three days?

=> We need to find the total time spent reading the book, so we'll add the times given for each day.

=> So, we must add the following fractions:
4/5 + 1/6 + 2/5

Fractions can only be added when they all have a common denominator. To make a common denominator, we'll multiply the numerator and denominator with the same number:

(4/5 x 6/6) + (1/6 x 5/5) + (2/5 x 6/6)
= 24/30 + 5/30 + 12/30

So, the total time adds up to 41/30 hours.

Therefore, Paul read his book for 41/30 hours.
If you need to convert this to minutes, it's approximately 1 hour and 22 minutes.

To find out the total time Paul read his library book for three days, we need to add up the time he spent reading each day. We have the following times:

Thursday: 4/5 hour
Friday: 1/6 hour
Saturday: 2/5 hour

To add these fractions, we need to find a common denominator. The least common multiple (LCM) of 5 and 6 is 30. Let's convert the fractions to have a denominator of 30:

Thursday: (4/5) * (6/6) = 24/30 hour
Friday: (1/6) * (5/5) = 5/30 hour
Saturday: (2/5) * (6/6) = 12/30 hour

Now, let's add the fractions:

24/30 + 5/30 + 12/30 = 41/30 hour

So, Paul read his library book for approximately 41/30 hour over three days.