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Mathematics 10 Online
OpenStudy (anonymous):

HELP! PLZ!?

OpenStudy (anonymous):

Estimate the quotient of seven and five over six divided by one and one over five using compatible numbers. What is the quotient?

OpenStudy (anonymous):

a. 4 b. 9 c. 8 d. 2

OpenStudy (anonymous):

\[7\frac{ 5 }{ 6 } \div 1\frac{ 1 }{ 5 }\] Find the least common denominator. (Keep adding 6 to itself and 5 to itself until they are equal.)

OpenStudy (anonymous):

A shorter way to do is 6*5=common denominator

OpenStudy (anonymous):

30

OpenStudy (anonymous):

ok, so to equal out the top numbers, \[\frac{ 5*5 }{ 6*5 } \div \frac{ 1*6 }{ 5*6 }\]

OpenStudy (anonymous):

what is, 5*5 and 1*6 (simple XD), because we already know the bottoms are both 30

OpenStudy (anonymous):

o so 25/30 and 6/30

OpenStudy (anonymous):

yep, now we just plug in to the original, to get: \[7\frac{ 25 }{ 30 } \div 1\frac{ 6 }{ 30 }\]

OpenStudy (anonymous):

from there i will need a bit of refreshing on fractions XD, just a sec

OpenStudy (anonymous):

ok haha :)

OpenStudy (anonymous):

wow i just realized the quotient is what to figure, XD

OpenStudy (anonymous):

xD

OpenStudy (anonymous):

ok first round 5/6 to the nearest whole number.

OpenStudy (anonymous):

simply just make it 6/6 which equals 1 :) now add that to 7. (1+7=?)

OpenStudy (anonymous):

8

OpenStudy (anonymous):

yayy ty :)

OpenStudy (anonymous):

now round 1/5, which is 0.2, then add 1.

OpenStudy (anonymous):

1.2

OpenStudy (anonymous):

1/2?

OpenStudy (anonymous):

remember the rule for rounding, if its over 5, round up, if its below 5, round down.

OpenStudy (anonymous):

2 is less than 5 right?

OpenStudy (anonymous):

oh ya lol o.o

OpenStudy (anonymous):

so 0.2 rounded down = ?

OpenStudy (anonymous):

even if the answer seems not right, it probably is lol

OpenStudy (anonymous):

then add that to 1.

OpenStudy (anonymous):

4? the answer

OpenStudy (anonymous):

ok, 0.2 rounded down is 0. 0+1=1, now take 8/1=? and thats your answer.

OpenStudy (anonymous):

8

OpenStudy (anonymous):

Yep.

OpenStudy (anonymous):

thanks :)))!

OpenStudy (anonymous):

No prob, sorry for dragging it out XD.

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