Question

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5 7 4 9
5. Write the ratios – 4:9,5:8 and 3: 7 in order, from the least to the greatest.
6 fa:= 4:7 and b:c=5:3, then find a : b:c
7. Ifa:b=5:6 and b:c = 9:4, then find a : c.
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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

click on the photo to get answer 5

Step-by-step explanation:

Here the common term is b which is found in both the ratios.

Ok now let’s look at the value of b in 1st ratio. It is 9. And 4 in the second.

Now we have to take the LCM of these two values so that we are changing the value of b into the LCM value in both the ratios. The LCM is 36.

So we change the value of b into 36 in the 1st and 2nd ratio. 9*4=36. So multiply the whole 1st ratio by 4 making a:b=20:36

Similarly change the value of b as 36 in the second ratio. 4*9=36. Hence multiply the entire second ratio by 9 making b:c=36:63.

Now that the value of b in both the ratio being same we can concatenate them. Hence a:b:c=20:36:63.

Hope you understand the logic!

this is answer 7