Posted by **James** on Friday, December 30, 2011 at 10:13pm.

It took mike 2 2/5 hours to drive home. His sister drove same distance in 3/8 of mikes time how long did the drive take mikes sister?

- Math -
**Steve**, Saturday, December 31, 2011 at 12:17am
2 2/5 = 12/5

in these word problems, "of" means "times" as in half of 10 is 1/2 * 10

So, we have

3/8 * 12/5 = 36/40

while that is mathematically correct, it is normal to reduce fractions to lowest terms, by removing common factors from numerator and denominator. So, since

36/40 = 4*9/4*10 = 4/4 * 9/10,

and 4/4 = 1,

we end up with just 9/10.

- Math -
**Todd**, Saturday, December 31, 2011 at 7:33am
2 2/5 hours is 132 minutes

132*3/8 is equal to 45 3/4 minutes

- Math :-( -
**Steve**, Saturday, December 31, 2011 at 8:30pm
2 1/5 hours is 132 minutes.

2 2/5 hours is 144 minutes . . .

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