Sophie B.

asked • 03/30/18

I’m stuck on a ratio question

a b c are all positive intergers 
a:b= 5:6
b:c=8:9
work our the smallest value of a+b+c
 

Sophie B.

Thank you so much @Mark M.
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03/30/18

Mark M.

You are welcome so much, Sophie.
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03/30/18

Arthur D.

tutor
you want the smallest value of a+b+c
a:b=5:6
b:c=8:9
LCM of 6 and 8 is 24
4*5=20, 4*6=24
3*8=24, 3*9=27
a:b=20:24, b:c=24:27
20/24=5/6, 24/27=8/9
a+b+c=20+24+27=71
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03/30/18

2 Answers By Expert Tutors

By:

Mark M. answered • 03/30/18

Tutor
5.0 (278)

Mathematics Teacher - NCLB Highly Qualified

Sophie B.

Thank you so much.
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03/30/18

Sophie B.

What would the final answer be? Just to check I got it right 
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03/30/18

Andrew M.

40 + 48 + 54 = 142
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03/30/18

Sophie B.

Yes thanks 
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03/30/18

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