Mathematics: Given that a/b = 3/5 and b/c = 3/4. Find a : b : c

It s not a mixed number it s just 13...

Given that a/b = 3/5 and b/c = 3/4. Find a : b - id353413420300, markusblazer

Ответ:

georgeonnatreev2275

21.06.2021

Mathematics

a : b : c = 9 : 15 : 20

Step-by-step explanation:

Here, b is common to both the ratios. In order to find the combined ratio of a, b and c, it is required to make the b ratio same in the given ratios.

Therefore,

$\frac{a}{b} = \frac{3}{5} = \frac{3 \times 3}{5 \times 3} = \frac{9}{15} \\ \\ \frac{b}{c} = \frac{3}{4} = \frac{3 \times 5}{4 \times 5} = \frac{15}{20} \\ \\ \implies \: a : b : c = 9 : 15 : 20$

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Given that a/b = 3/5 and b/c = 3/4.
Find a : b : c

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