Sophie B.
asked 03/30/18I’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
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2 Answers By Expert Tutors
Arthur D. answered 03/30/18
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Mathematics Tutor With a Master's Degree In Mathematics
a:b=5:6
b:c=8:9
you want the smallest value of a+b+c
LCM of 6 and 8 is 24
4*5=20, 4*6=24
3*8=24, 3*9=27
20:24=5:6, 24:27=8:9
a=20, b=24, c=27
a+b+c=20+24+27=71

Mark M. answered 03/30/18
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Mathematics Teacher - NCLB Highly Qualified
a : b :: 5 : 6
a : b :: 40 : 48
b : c :: 8 : 9
b : c :: 48 : 54
a : b : c :: 40 : 48 : 54
What is the value of a + b + c?
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Sophie B.
03/30/18