Question

what divided by 5 equals 1.21

Answer 1

Set the number as x
x/5=1.21
Multiply by 5 on each side to cancel the 5 in the denominator.
x=6.05

Check your answer:
6.05/5=1.21
1.21=1.21

Hope this helps :)

Answer 2

What I did was 5 then divide by 1.21 witch then gives you 4.1322314 then do 5divide by 4.1322314 witch will give you 1.21.