Question

Dena is biking down a 9/10 mile bike trail. She stops to greet a friend after biking 1/3 of a mile. How much farther does she need to travel?

Answer 1

x = 9/10 - 1/3

Where 'x' is the amount she needs to travel.

Subtract 1/3 from 9/10.

9/10 - 1/3

Convert to denominators of 30:

27/30 - 10/30

Subtract the numerators:

17/30

So she has to travel 17/30 miles more.

Answer 2

`(9)/(10) - (1)/(3) = ((9)/(10) * (3)/(3)) - ((1)/(3) * (10)/(10))= (27)/(30) - (10)/(30)`


`= (17)/(30)`