Question

Dennis drove for 3 1/3 hours on monday, 4 3/4 hours on Wednesday, and 2 1/10 hours on Friday. How many hours did Dennis drive this week?

Answer 1

Dennis drove for
`\bold{10(11)/(60)}` hours this week

(10 hours 11 minutes)

Explanation:

`3\frac13+4\frac34+2\frac1{10}=3+4+2+\frac13+\frac34+\frac1{10}=9+(20)/(60)+(45)/(60)+\frac6{60}=9+(71)/(60)=\\\\=9+1(11)/(60)=10(11)/(60)`