problem of arithmetic

Question

You can only use the numbers $1,3,5,7,9,11,13,15$.

You can also repeat the numbers.

Fill in the blanks: ____ $+$ ____ $+$ ____ $=30$

Answer 1

One solution would be 13.7 + 15.3 + 1 = 30

Answer 2

Inspired by previous answer,

$$ 3! + 11 + 13 = 30. $$