a stretch of hiway is?

a stretch of hiway is 28 1/3 mi long.already 2/5 of it has been paved,how many miles still need to be paved?
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1 Answer

If 2/5 has been paved that means that 3/5 remains

28 1/3 times the 3/5 that remain

convert the mixed number to improper fraction by multiplying 28 by 3 and adding it to the 1 on the top of the fraction.

85/3

Then multiply

 85       3         255

----- x  ----- = ---------

  3        5          15

Convert that back into a whoe number by dividing, 15 into 255 is

17 miles

 

by Level 4 User (9.6k points)

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