Kyle drives one and two-fifths hours to visit his grandmother when he takes the new expressway, which has made his trip one-third as long as it used to be. How long did his trip take before the expressway was built?

one and eleven fifteenths hours

seven-fifteenths hours

four and one-fifth hours

one and one-fifteenth hours

Question

Kyle drives one and two-fifths hours to visit his grandmother when he takes the new expressway, which has made his trip one-third as long as it used to be. How long did his trip take before the expressway was built?

 one and eleven fifteenths hours

 seven-fifteenths hours

 four and one-fifth hours

 one and one-fifteenth hours

anonymous · Answer

@campbell_st @Nurali @Luigi0210 can you help meee?

anonymous · Answer

well...if 1 2/5 hours is 1/3 of 3/3...how do YOU think you should solve the problem?

anonymous · Answer

multiply 1 2/5 by 3

anonymous · Answer

which gets you...

anonymous · Answer

do you know how to multiple mixed numbers by whole numbers?

anonymous · Answer

no, lol this is a pretest

anonymous · Answer

I'll explain...
change it to an improper fraction (top heavy, which means the numerator is greater than the denomerator)
1 2/5 = 5 x 1 + 2 = 5 + 2 = 7/5
7/5 x 3 = 7/5 x 3/1 = 21/5
21/5 = 4 1/5

anonymous · Answer

make sense?

anonymous · Answer

actually yes!! thankyouu

anonymous · Answer

when converting mixed numbers to improper fractions you multiply the denomerator by the whole number of the mixed number, add the product to the numerator, and express your solution as anew fraction, with the solution as the numerator over the original denomerator