Help with Math?

Question

Robin ran 5 1/3 on Sunday and 2 1/4 on Tuesday. She then ran 3 1/2 on Friday. How far did she run during the week? I am confused where to start first.....

Answer 1

you can start by making them improper fractions and finding a common denominator.
5 1/3= 16/3
2 1/4=9/4
3 1/2=7/2
common denominator between all of them is 12

16/3*4/4= 64/12
9/4*3/3=27/12
7/2*6/6=42/12

then you just add them altogether.

64/12+27/12+42/12=133/12

133/12=11 1/12
if you want to change back to mixed fractions

Answer 2

5 1/3 + 2 1/4 + 3 1/2
=5 4/12 + 2 3/12 + 3 6/12
=7 7/12 + 3 6/12
=10 13/12
=11 1/12

Answer 3

I would convert all the fractions to a number that you can add together with the same denominator...looks like 12 would do the trick.
So convert 5 1/3 to 5 4/12
Convert 2 1/4 to 2 3/12
And Convert 3 1/2 to 3 6/12

Adding the 5 + 2 + 3 parts is easy, right = 10
Then add the 4/12 + 3/12 + 6/12 = 13/12 = 1 1/12

So if my math is right, the answer is 11 and 1/12

Answer 4

11 1/12

Answer 5

5 1/3 + 2 1/4 + 3 1/2 = distance covered by her
16/3 + 9/4 +7/2
(64+27+42)/12
133/12 = 11 1/12

Whatever the distance unit you took it as, 11 1/12 is the amount. This becomes 11.083- (I mean hash, as in the line above) in meters, kms, cms, mms etc. So guessing that it has 12 as denominator, it is probably feet, so this becomes =11'1"

Answer 6

11 and 1/2

Answer 7

get a common denominator

16/3 + 9/4 + 7/2 = x

16/3 (4/4) + 9/4 (3/3) + 7/2 (6/6) = x

64/12 + 27/12 + 42/12 = x

133/12 = x

11 1/12

Answer 8

Change the fractions to improper fractions first:
Sunday = 16/3
Tuesday = 9/4
Friday= 7/2

Then in order to add these, you must get the denominators to be the same. 3, 4, and 2 all can factor into 12. So:
64/4 + 27/12 + 42/12 = 133/12

Answer is 133/12

Answer 9

11.083 ??

are those units of time, distance, or average distance over time?

i have no idea what the units of those values are so the answer could be different in all accounts.

lets' say the values you gave us were an average distance over time. then the quesiton wants the total distance traveled over a 7 day period. you would be factoring in the days she did not run. while days she did not run would mean nothing, if you are being graded on the writing out the expression as well as getting the right answer, then that's something you should take into consideration.

sorry for complicating things, but the question was kind of vague and you run the risk of getting the wrong answer.

Answer 10

just add 5.33+2.25+3.5 or to be more exact 5 4/12 + 2 3/12+ 3 6/12= 9 1/12 = 9 Hr 10min