Question

Find the Compound Ratio of 4:5 and 2:9​

Answer 1

Answer:

it not the right answer

but it's similar..

By the defination of compound ratio 2:3 and 5:7 can be expressed as

3

2

×

7

5

=

21

10

Hence 10:21

Answer 2

Answer:

8:45

Step-by-step explanation:

If a:b and c:d are two ratios, then ac:bd is called compounded ratio.

compounded ratio of 4:5,2:9 is 4×2:5×9=8:45