# Two words for nine hours forty eight minutes on Jupiter planet?

Rotation period

or

a day

### What fraction of an hour is forty minutes?

The correct answer is 2/3. 20 +20+20=60-20=40 minutes. There are still two 20s left from 60, so it is 2/3. ------------------------------------------------------------ Forty minutes out of sixty minutes can be reduced to 2/3. ------------------------------------------------------------ 40/60 = 4/6 = 2/3 = 0.6666666666666667