Question

Write 7:30 in two ways

Answer 1

Three ways are: 

In Fraction Form:  $\frac{7}{30}$  
In Ratio its: What you said  7:30

And

In a Percent Form Its:  0.23- %
(I got that from dividing 7 by 30.)

Hope IT helped You. :D

Answer 2

$7$ to $30$

$\frac{7}{30}$