Question

please do this math question. is is very important for me​

Answer 1

Step-by-step explanation:

-7/15

Hope it helps

Brainly....

Answer 2

2-² + 3-³ = (1/2²) + (1/3³)

=> (1/4) + (1/27)

=> (27+4)/108

=> 31/108

31/108 is answer of this question ,but as it's not a option, there is mistake in question