What is the answer to this question 2/100+3/10=

The answer is:  "8/25"  ; or write as:  "4/25"  .

Explanation:

Given:  2/100  +  3/10  =  _?__  ??

    Note:  3/10 = ? / 100  ;
  
           10 * 10  = 100 ;

so:     3/10 = (3*10) / (10*10) = 30/100 ;

So;   2/100 + 3/10  =  2/100 + 30/100 = 32/100 ;

We have:  "32/100" ; which can be written in "decimal form" ;

     →  "32/100"  =  32 ÷ 100  = 0.32 ;

Or, "32/100" can be simplified further, in "fraction form" ;

    →   "32/100" = (32÷8) / (100÷8)  = 4/25  ;

The   "0.25" ; or;  "4/25" .

Sss

SSS stands for "side, side, side" and means that we have two triangles with all three sides equal. If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.