Emeka is 10 years 6 months old. Abdul his classmate is only 9 years old. Find the ratio of Emeka's age to that of Abdul?

Emeka : Abdul

= 10.5 : 9
= 21 : 18
= 7 : 6

How did get 10.5 and 21

how did u get 21:18

Yes

No

How did u get 10.5

And under it gives u 21

Can you explain how you got 21 and 18