Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (mrmudd184):

plz help

OpenStudy (anonymous):

hi

OpenStudy (welshfella):

Hi what's your question?

OpenStudy (anonymous):

hi

OpenStudy (anonymous):

it is.Each friend in a group ordered a muffin that was too big to finish! Below is the fraction of a muffin that each person ate. Find the mean fraction of a muffin eaten. |dw:1459629496641:dw|

OpenStudy (anonymous):

the fractions are 3/8;1/4;1/2;7/8

OpenStudy (welshfella):

well you need to add up the 4 fractions then divide by 4.

OpenStudy (welshfella):

to add fractions you need to make all the denominators the same value here the highest denominator is 8 so you need to convert 1/4 and 1/2 to something / 8. do you know how to do that?

OpenStudy (anonymous):

4/8

OpenStudy (welshfella):

thats 1/2 yes what about the 1/4?

OpenStudy (anonymous):

that into 2/8

OpenStudy (welshfella):

just multiply top and bottom by 2

OpenStudy (welshfella):

correct so now its 2/8 + 3/8 + 4/8 + 7/8

OpenStudy (welshfella):

just add up the numerators

OpenStudy (anonymous):

\[2/8+3/8+4/8+7/8=16/8=2\]

OpenStudy (welshfella):

correct so now to find the mean you divide by the number of fractions which is 4

OpenStudy (anonymous):

16 divided by 4 = 4

OpenStudy (anonymous):

2 divided by 4 is 8

OpenStudy (anonymous):

2*

OpenStudy (welshfella):

2/4 = 1/2

OpenStudy (anonymous):

thx

OpenStudy (welshfella):

yw

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!