Given a:b = 9 : 5 and b:c = 7 : 2:
Calculate a:c
Match the b portions of each ratio:
Convert a:b Ratio
35 ÷ 5 = 7
7 x 9 : 7 x 5 = 63 : 35
This is our new a : b ratio
Convert b:c Ratio
35 ÷ 7 = 5
5 x 7 : 5 x 2 = 35 : 10
This is our new b : c ratio
Final Answer
The b portions of the ratios match
a : c = 63 : 10
Common Core State Standards In This Lesson
CCSS.MATH.CONTENT.6.RP.A.1
What is the Answer?
a : c = 63 : 10
How does the Combined Ratio Calculator work?
Free Combined Ratio Calculator - Given a ratio a:b and a ratio b:c, this determines the combined ratio a:c
This calculator has 2 inputs.
This calculator has 2 inputs.
What 1 formula is used for the Combined Ratio Calculator?
What 4 concepts are covered in the Combined Ratio Calculator?
- combined ratio
- genrated by taking the product of the antecedents of all the ratios as antecedents and the product of the consequents of all the ratios as consequents
- fraction
- how many parts of a certain size exist
a/b where a is the numerator and b is the denominator - least common multiple
- Given 2 numbers a and b, the least common multiple LCM is the smallest positive integer that is divisible by both. It is commonly denoted as LCM(a, b)
- ratio
- indicates how many times one number contains another
Example calculations for the Combined Ratio Calculator
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