Question

If A:B =7:8 and B:C=4:5 then A:B:C is?​

Answer 1

Step-by-step explanation:

A:B=7:8

B:C=4:5

lcm of 8,4=8

A\B=7/8 and B/C=8/10

A:B:C=7:8:10

Answer 2

Given A:B =7:8 and B:C=4:5 then A:B:C =?

Look at first ratio B has 8 and in second ratio B has 4.

Now do LCM for 8 and 4.

We get 8

A/B=7/8____(1)

Multiply second ratio B to get its value as 8 .

So multiply second ratio with up and down 8/10

Then we get ..

B/C=8/10_____(2)

Now value of B in both ratioes are same .

So A:B:C=7:8:10

This is the required ration

Hope it helps

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