Question

Richard practiced each of 3 piano solos for 5/12 hour. Expressed in simplest form, how long did he practice in all.

Answer 1

Answer: $1\frac{1}{4}$ hour.

Step-by-step explanation:

Given: The number of piano solos practiced by Richard = 3

Time taken by Richard to practice each piano solo=$\frac{5}{12}$ hour

Now, to calculate the time taken by Richard to practice all 3 piano solos, we multiply number of piano solos to the time taken to practice each piano solo, we get

The time taken by Richard to practice all 3 piano solos$=3\times\frac{5}{12}=\frac{5}{4}=1\frac{1}{4}$ hour.

Hence, The time taken by Richard to practice all 3 piano solos=$1\frac{1}{4}$ hour.

Answer 2

5\12 * 3 = 15/12 

15/12 = 1 3/12

1 3/12 = 1 1/4

so he practiced for 1 hour and 15 min