Mathematics
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OpenStudy (anonymous):
HELP! PLZ!?
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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
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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
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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=?)
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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?
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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
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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.
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OpenStudy (anonymous):
thanks :)))!
OpenStudy (anonymous):
No prob, sorry for dragging it out XD.